From Glyoxal Or Compound Having Two Or More -c(=o)-h Groups Per Se Patents (Class 528/245)
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Patent number: 7354987Abstract: The invention relates to a compound of formula I: where: X is equal to NR5; R4 is equal to a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group. R1, R2, R3, R5 are equal to an H, alkyl, cycloalkyl, aryl of heterocyclic group; where R1, R2, and R5 or R1, R2, and R3 may together form a heterocyclic group. The invention also relates to a method for the preparation of this compound by reaction of an amino compound with an alkanol hemiacetal. The invention also relates to amino-aldehyde resins containing this compound and the application of these resins in adhesive compositions, laminates, shaped articles and transparent coatings.Type: GrantFiled: February 20, 2007Date of Patent: April 8, 2008Assignee: DSM IP Assets B.V.Inventors: Rudolfus Antonius Theodorus Maria Van Benthem, Renier Henricus Maria Kierkels, Jacobus Adriaan Antonius Vermeulen
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Patent number: 7199209Abstract: The invention relates to a compound of formula I: where: X is equal to NR5; R4 is equal to a C1–C12 alkyl group, aryl group, aralkyl group or cycloalkyl group, R1, R2, R3, R5 are equal to an H, alkyl, cycloalkyl, aryl of heterocyclic group; where R1, R2, and R5 or R1, R2, and R3 may together form a heterocyclic group. The invention also relates to a method for the preparation of this compound by reaction of an amino compound with an alkanol hemiacetal. The invention also relates to amino-aldehyde resins containing this compound and the application of these resins in adhesive compositions, laminates, shaped articles and transparent coatings.Type: GrantFiled: May 28, 2003Date of Patent: April 3, 2007Assignee: DSM I.P. Assets B.V.Inventors: Rudolfus Antonius Theodorus Maria Van Benthem, Renier Henricus Maria Kirkels Van Duin, Jacobus Andriaan Antonius Vermeulen
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Patent number: 7196156Abstract: A flexibilized resorcinolic novolak resin is prepared by reacting a phenolic compound, such as resorcinol, with an unsaturated dihydroxy, an unsaturated aldehyde, an aliphatic dialdehyde, or a mixture thereof. An aldehyde (different from the unsaturated aldehyde and the aliphatic dialdehyde) is either simultaneously or subsequently added to the reaction mixture. The flexibilized resorcinolic novolak resin can be used in an adhesive composition for enhancing the adhesion between tire cords and rubber for tire applications.Type: GrantFiled: December 12, 2003Date of Patent: March 27, 2007Assignee: Indspec Chemical CorporationInventors: Raj B. Durairaj, Mark A. Lawrence
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Patent number: 6949291Abstract: The invention relates to optical devices comprising a substrate and at least one semiconductive polymer supported by said substrate, wherein said semiconductive polymer is a copolymer in which one of the repeat units is a group of formula (I) or a homopolymer in which the repeat unit is a group of formula (I): wherein: A and B are the same or different and each comprises wholly or partially an aryl moiety or a heteroaryl moiety, said moiety in A being fused to the bond a-b and said moiety in B being fused to the bond c-d, and X is a linking unit, X being such that there is a torsion angle of at least 5° between the bond a-b and the bond c-d about the bond b-d. The invention also relates to semiconductive polymers, monomers for preparing same, and methods for preparing random statistical conjugated polymers.Type: GrantFiled: September 26, 2001Date of Patent: September 27, 2005Assignee: Cambridge Display Technology LimitedInventors: Andrew Holmes, Rainer Martin, Ian Rees, Cedric Fischmeister, Yuguang Ma, Franco Cacialli
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Patent number: 6818729Abstract: This invention provides a thermosetting resin and a method for producing the same, in which 5% to 95% by weight of an aminoplast resin and 5% to 95% by weight of a polyalkylene glycol are subjected to a condensation reaction under alkaline conditions, the resulting reaction product is methoxylated with methanol, and pH of the methoxylated product is controlled in a range from 10 to 11. The thermosetting resin for impregnation of resins or for use in building materials obtained according to the invention is highly stable, can be diluted with water, has excellent workability, stiffness, chemical resistance, water resistance, moisture resistant strength, and adhesion in water, exhibits improved brittleness and has satisfactory flexibility and impact resistance.Type: GrantFiled: January 28, 2003Date of Patent: November 16, 2004Assignee: Showa Highpolymer Co., Ltd.Inventors: Fumitoshi Tsukiyama, Tadahiro Inada
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Publication number: 20040105840Abstract: The present invention broadly relates to the field of protein modification, and, more specifically, to conjugates of proteins or analogs thereof to a water-soluble biocompatible polymer and methods of making and using the same.Type: ApplicationFiled: July 18, 2003Publication date: June 3, 2004Inventors: Olaf B. Kinstler, David L. Ladd, Mikahil I. Papisov
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Publication number: 20030149137Abstract: This invention provides a thermosetting resin and a method for producing the same, in which 5% to 95% by weight of an aminoplast resin and 5% to 95% by weight of a polyalkylene glycol are subjected to a condensation reaction under alkaline conditions, the resulting reaction product is methoxylated with methanol, and pH of the methoxylated product is controlled in a range from 10 to 11. The thermosetting resin for impregnation of resins or for use in building materials obtained according to the invention is highly stable, can be diluted with water, has excellent workability, stiffness, chemical resistance, water resistance, moisture resistant strength, and adhesion in water, exhibits improved brittleness and has satisfactory flexibility and impact resistance.Type: ApplicationFiled: January 28, 2003Publication date: August 7, 2003Inventors: Fumitoshi Tsukiyama, Tadahiro Inada
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Patent number: 6514439Abstract: Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or —NH-groups, or (c) an optionally substituted ethylene or propylene moiety Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c).Type: GrantFiled: December 11, 2001Date of Patent: February 4, 2003Assignee: Syngenta Ltd.Inventors: Juanita E. Van Koppenhagen, Herbert B. Scher, Kuo-shin Lee, Ian M. Shirley, Philip Wade, Richard Follows
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Patent number: 6426393Abstract: To provide polyacetal which has excellent shock resistance, rigidity and creep resistance as essential properties of the polymer and makes a high flowability and an excellent molding property upon molding possible by improving the thermal stability. In the manufacture of a polyacetal copolymer by a copolymerization of 100 parts by weight of trioxane (a) with 0.05-20 parts by weight of a cyclic ether compound (b) which is copolymerizable with trioxane and 0.001-10 parts by weight of a mono-functional glycidyl compound (c), the mono-functional glycidyl compound (c) having a chlorine content of not more than 0.3% by weight is used.Type: GrantFiled: February 1, 2001Date of Patent: July 30, 2002Assignee: Polyplastics Co., Ltd.Inventors: Yoshihisa Tajima, Hidetoshi Okawa
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Patent number: 6388049Abstract: A low-molecular-weight oxymethylene polymer characterized by having a straight-chain molecular structure, a number-average molecular weight of 1,000 to 8,000 and a molecular weight distribution (Mw/Mn) of 1.0 to 3.0, and containing 0 to 30 mol % of a co-monomer.Type: GrantFiled: February 28, 2001Date of Patent: May 14, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Hiroshi Yokoyama, Yukihiro Ban
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Patent number: 6379800Abstract: Glyoxal-phenolic condensates, epoxidized products thereof, as well as their method of manufacture are disclosed. The condensates and epoxidized products have exceptionally high fluorescence as well as good ultraviolet absorbance. There is also disclosed compositions and laminates containing the condensates and epoxidized products thereof.Type: GrantFiled: January 20, 2001Date of Patent: April 30, 2002Assignee: Borden Chemical, Inc.Inventor: Arthur H. Gerber
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Patent number: 6337130Abstract: Microcapsules of a microcapsule formed of a polyurea shell wall and an encapsulated ingredient or ingredients enclosed within the wall, the wall comprising at least one oligomeric acetal having the moiety in which R is (a) a moiety containing a chain of from 5 to about 40 optionally substituted carbon atoms, (b) a moiety containing a chain of from 4 to about 40 carbon atoms and one or more internally linked oxygen or sulfur atoms or —NH-groups, or (c) an optionally substituted ethylene or propylene moiety Z is (a) an optionally substituted phenyl group, (b) an optionally substituted C1-C20 alkyl, C2-C20 alkenyl, C3-C8 cycloalkyl or C5-C8 cycloalkenyl group, or (c) benzoyl, and n is 1 if R is (a) or (b), or is 2-20 if R is (c).Type: GrantFiled: July 29, 1999Date of Patent: January 8, 2002Assignee: Zeneca LimitedInventors: Juanita Elena Van Koppenhagen, Herbert Benson Scher, Kuo-Shin Lee, Ian Malcolm Shirley, Philip Wade, Richard Follows
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Patent number: 6316583Abstract: The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80° C. to about 100° C. with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature below about 170° C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol. Water is distilled stepwise or continuously from the reaction mixture.Type: GrantFiled: December 13, 2000Date of Patent: November 13, 2001Assignee: Borden Chemical, Inc.Inventor: Arthur H. Gerber
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Patent number: 6239248Abstract: The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation, polyphenolic products, epoxidized derivatives and compositions thereof as well as laminates containing fluorescent polyphenolic products and derivatives thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80° C. to about 100° C. with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature below about 170° C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol.Type: GrantFiled: April 23, 1999Date of Patent: May 29, 2001Assignee: Borden Chemical, Inc.Inventor: Arthur H. Gerber
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Patent number: 6232399Abstract: The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80° C. to about 100° C. with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature below about 170° C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol. Water is distilled stepwise or continuously from the reaction mixture.Type: GrantFiled: August 9, 2000Date of Patent: May 15, 2001Assignee: Borden Chemical, Inc.Inventor: Arthur H. Gerber
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Patent number: 6201095Abstract: A process is described for preparing a dialkoxyethanal-amine derivative resin low in color by adding low amounts of formaldehyde to the reactants before acidification and heating. The reaction product is also claimed. The composition is useful in a variety of coating and overcoating applications where a brown, yellow or amber color would be aesthetically undesirable.Type: GrantFiled: June 22, 1999Date of Patent: March 13, 2001Assignee: Omnova Solutions Inc.Inventors: William C. Floyd, Bernard F. North
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Patent number: 6201094Abstract: The specification discloses epoxidized products and compositions of a polyphenol of a phenol and glyoxal wherein the polyphenol prior to epoxidation has an ultraviolet (UV) absorbance of at lest 0.260 at 365 nanometers (nm) and/or at least 0.400 at 350 nm.Type: GrantFiled: October 20, 1999Date of Patent: March 13, 2001Assignee: Borden Chemical, Inc.Inventor: Arthur H. Gerber
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Patent number: 6140421Abstract: The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80.degree. C. to about 100.degree. C. with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature below about 170.degree. C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol. Water is distilled stepwise or continuously from the reaction mixture.Type: GrantFiled: September 23, 1999Date of Patent: October 31, 2000Assignee: Borden Chemical, Inc.Inventor: Arthur Harry Gerber
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Patent number: 6140456Abstract: New starting materials and chemical processes will be used to make fluorinated poly(para-xylylenes) (F-PPX) and fluorinated poly(para-fluoroxylylenes) (F-PPFX). The processes will use some very low cost and readily available starting materials, catalysts, chemical reactors, transport polymerization (TP) systems, and chemical vapor deposition (CVD) systems commonly used for making F-PPX. New TP and CVD deposition systems will also be used to make F-PPX and F-PPFX. These polymers are used for the manufacture of low dielectric films with high thermal stability and are sufficiently strong to withstand planarization and polishing for the manufacture of integrated circuits.Type: GrantFiled: October 24, 1997Date of Patent: October 31, 2000Assignee: Quester Techology, Inc.Inventors: Chung J. Lee, Hui Wang, Giovanni Antonio Foggiato
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Patent number: 6136200Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein: A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH).sbsp.p.sup.(SO.sbsp.4.sup.).sbsp.y.sup.(Aci) (2m+3n)-p-2y].sub.rwhere r=1 to 98% bw; u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ =(PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al--Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.Type: GrantFiled: March 11, 1994Date of Patent: October 24, 2000Assignee: Polymer Research CorporationInventor: John J. Waldmann
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Patent number: 6031132Abstract: An amide-group-containing polyacetal, having acetal structure unit (1) of general formula (1) below in its molecule. This amide-group-containing polyacetal is usable as a detergent builder for detergent compositions. ##STR1## A production process of an amide-group-containing polyacetal, comprising the step of carrying out an ester-amide exchange reaction between an ester-group-containing polyacetal having acetal structure unit (3) of general formula (3) below in its molecule and an amine.Type: GrantFiled: December 15, 1998Date of Patent: February 29, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Takuya Saeki, Hideyuki Nishibayashi, Shigeru Yamaguchi, Satoru Miura
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Patent number: 6001950Abstract: The specification discloses a method for the manufacture of a fluorescent polyphenolic product with high UV absorbance, its subsequent epoxidation as well as polyphenolic products and epoxidized derivatives and compositions thereof. The polyphenolic products are prepared by heating glyoxal at a temperature of about 80.degree. C. to about 100.degree. C. with a molar excess of a phenol in the presence of an acidic catalyst which is eliminated from the reaction mixture at a temperature below about 170.degree. C. The total mole ratio of glyoxal to phenol charged to the reaction mixture is about 0.15 to 0.22 moles of glyoxal for each mole of phenol. The glyoxal is added continuously or by stepwise additions to the phenol so as to keep the aldehyde units in the reaction mixture to less than about 70% of the aldehyde units in the total quantity of glyoxal to be charged for making the polyphenol. Water is distilled stepwise or continuously from the reaction mixture.Type: GrantFiled: September 22, 1998Date of Patent: December 14, 1999Assignee: Borden Chemical, Inc.Inventor: Arthur Harry Gerber
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Patent number: 5929195Abstract: A branched or crosslinked polyacetal resin is excellent in blow moldability, has impact resistances such as plane impact resistance, and the smoothness of the inner surfaces of moldings produced therefrom, and is suitable for molding, particularly blow molding. It can be produced by the bulk polymerization of (A) trioxane with (B) a cyclic ether and/or cyclic formal and (C) a polyfunctional glycidyl ether compound in the presence of (D) a cationic polymerization catalyst, a mixture prepared by mixing the cyclic ether and/or cyclic formal (B) with the polyfunctional glycidyl ether compound (C) and the cationic polymerization catalyst (D) is added to trioxane (A) to conduct the polymerization.Type: GrantFiled: July 14, 1998Date of Patent: July 27, 1999Assignee: Polyplastics Co., Ltd.Inventors: Kuniaki Kawaguchi, Kaoru Yamamoto, Hajime Serizawa
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Patent number: 5856288Abstract: A new block copolymer, which is excellent with regard to abilities such as dispersibility, chelatability, and scale inhibitability, includes a polyalkylene glycol structural unit and a polyglyoxylate structural unit. This block copolymer, for example, can be produced by carrying out a polymerization reaction between a polyalkylene glycol and a glyoxylic acid-based monomer in the presence of a catalyst in a polymerization reaction system having a water content of about 30 mol % or less relative to the polyalkylene glycol, and used as a cement dispersant, pigment dispersant, water-treating agent, or detergent builder.Type: GrantFiled: April 21, 1997Date of Patent: January 5, 1999Assignee: Nippon Shokubai Co., Ltd.Inventors: Takuya Saeki, Hideyuki Nishibayashi, Tsuyoshi Hirata, Shigeru Yamaguchi
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Patent number: 5844059Abstract: To prepare a thermally very stable polyacetal copolymer containing a very small amount of unstable parts in a high yield according to a simple process wherein an isopolyacid or an acid salt thereof is used as the polymerization catalyst in the copolymerization of trioxane as the principal monomer with a comonomer copolymerizable therewith, and wherein deactivation of the catalyst can be effected simply without fail through contact with a basic gas after polymerization without the necessity for any washing step. In the preparation of a polyacetal copolymer by the copolymerization of trioxane as the principal monomer with a cyclic ether or cyclic formal having at least one carbon--carbon bond as a comonomer, the copolymerization is effected using an isopolyacid or an acid salt thereof as the polymerization catalyst, followed by contact with a basic gas as a deactivator to deactivate the catalyst, and subsequent heat-melting treatment of the resulting crude polymer intact without washing thereof.Type: GrantFiled: January 27, 1997Date of Patent: December 1, 1998Assignee: Polyplastics Co., Ltd.Inventors: Kaoru Yamamoto, Hiroyuki Kanai
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Patent number: 5830978Abstract: A resin composition useful as a binder is provided comprising the reaction product of an amine derivative chosen from melamine, glycolurile or their mixtures with a C.sub.1 to C.sub.8 dialkoxyethanal, the reaction product is then reacted with a polyol.Type: GrantFiled: April 11, 1995Date of Patent: November 3, 1998Assignee: Sequa Chemicals, Inc.Inventor: William C. Floyd
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Patent number: 5739260Abstract: A resin composition useful as a crosslinker for graphics applications is provided comprising the reaction product of an amine derivative chosen from melamine, glycolurile or their mixtures with a C.sub.1 to C.sub.8 dialkoxyethanal, the reaction product is then mixed, preferably reacted with a polyol and a hydrophobic modifier.Type: GrantFiled: August 5, 1996Date of Patent: April 14, 1998Assignee: Sequa Chemicals, Inc.Inventors: William C. Floyd, Larry G. Venable, William A. Fuchs, Jr.
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Patent number: 5728798Abstract: In preparing a polyacetal copolymer through copolymerization of trioxane as the principal monomer with a cyclic ether or cyclic formal having at least one carbon-carbon bond as the comonomer, 0.05 to 100 ppm (on the weight basis), based on the total amount of the monomers, of a heteropoly-acid or an acidic salt thereof is used as a polymerization catalyst, and a liquid mixture preliminarily prepared by mixing at least part or the whole of the comonomer with the polymerization catalyst is added to trioxane to effect copolymerization. According to such the process, the polymerization yield and the degree of polymerization (molecular weight) are enhanced, and a polyacetal copolymer having an improved stability can be obtained.Type: GrantFiled: March 7, 1997Date of Patent: March 17, 1998Assignee: Polyplastics Co., Ltd.Inventors: Akira Nakai, Kaoru Yamamoto
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Patent number: 5693743Abstract: The invention relates to aminoplastics, which are created by reacting comnds that contain amide groups with glutaric dialdehyde, and to a process for their preparation and to their use. The aminoplastic according to the invention is free of formaldehyde and can be hardened without difficulty by acidic catalysis or thermal processes. The aminoplastic is prepared by polycondensation of compounds that contain amide groups with glutaric dialdehyde in aqueous solution.Type: GrantFiled: October 10, 1995Date of Patent: December 2, 1997Assignee: Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung e.V.Inventors: Rudolf Nastke, Gerald Rafler
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Patent number: 5691426Abstract: A resin composition useful as a binder is provided comprising a mixture of a formaldehyde-based resin with a resin substitute comprising the reaction product of an amine derivative chosen from melamine, glycolurile or their mixtures with 1 to 2 moles of a C.sub.1 to C.sub.8 dialkoxyethanal, the reaction product is mixed, preferably reacted, with a polyol.Type: GrantFiled: February 28, 1997Date of Patent: November 25, 1997Assignee: Sequa Chemicals, Inc.Inventor: William Floyd
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Patent number: 5665851Abstract: Aminoplastic resin based on one or more amino derivatives and one or more aldehydes in which the amino derivative is melamine, glycoluril or their mixture in variable proportions and that the aldehyde is a product of formula (I) R--CHO where R=a dialkoxymethyl, 1,3-dioxolan 2-yl group optionally substituted on the vertex 4 and/or 5 by one or more alkyl groups or a 1,3-dioxan 2-yl group optionally substituted on vertices 4, 5 and/or 6 by one or more alkyl groups, optionally mixed with glyoxal, preparation process and use as a crosslinking agent for cellulose.Type: GrantFiled: August 21, 1995Date of Patent: September 9, 1997Assignee: Sequa Chemicals, Inc.Inventors: Didier Wilhelm, Alain Blanc, William C. Floyd
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Patent number: 5665853Abstract: The tensile strength properties of paper are improved by adding to paper stock a resin composition comprising a water-soluble polymer containing a polyhydric alcohol such as sorbitol in the backbone of the polymeric molecule.Type: GrantFiled: September 3, 1996Date of Patent: September 9, 1997Assignee: Geo Speciality Chemicals, Inc.Inventor: Jose M. Rodriguez
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Patent number: 5567798Abstract: A composition of matter (resin) useful for imparting wet strength to paper products is prepared from a polyamine, a polycarboxylic acid or ester, a dialdehyde and epichlorohydrin. Wet strengthened paper products made using the resin are more easily repulped than paper products made with conventional wet strength agents.Type: GrantFiled: September 12, 1994Date of Patent: October 22, 1996Assignee: Georgia-Pacific Resins, Inc.Inventors: Margaret A. Dulany, Chad E. Garvey, Clay E. Ringold, Ramji Srinivasan
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Patent number: 5552496Abstract: An aqueous coating composition which is self-drying or is crosslinked by external agents, processes and dispersions for its preparation and its use.Type: GrantFiled: February 27, 1995Date of Patent: September 3, 1996Assignee: Herberts Gesellschaft mit beschrankter HaftungInventors: Bettina Vogt-Birnbrich, Hans-Peter Patzschke, Werner Lenhard, Walter Schubert
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Patent number: 5539077Abstract: A resin composition useful as a binder is provided comprising the reaction product of an amine derivative chosen from melamine, glycolurile or their mixtures with a C.sub.1 to C.sub.8 dialkoxyethanal, the reaction product is then mixed with a polyol.Type: GrantFiled: December 7, 1994Date of Patent: July 23, 1996Assignee: Sequa Chemicals, Inc.Inventor: William C. Floyd
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Patent number: 5437821Abstract: Carbon-carbon composites of acceptable shrinkage and with negligible voids re prepared in a single casting step from acetylene-terminated Schiff's base monomers by melting a selected monomer, polymerizing it within a mold to form a green casting, and heating the casting to a carbonizing temperature. Blends of monomers may be used. Graphite may be admixed with the melted monomer to form a slurry before molding. Graphite in the form of woven graphite fiber may alternatively be positioned within the mold before the melted monomer is added thereto.Type: GrantFiled: September 30, 1993Date of Patent: August 1, 1995Assignee: The United States of America as represented by the Secretary of the NavyInventors: Thomas Diberardino, Vincent J. Castelli
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Patent number: 5405938Abstract: The present invention describes a polymer composition effective to bind, in a sequence-specific manner to a target sequence of a duplex polynucleotide, at least two different-oriented Watson/Crick base-pairs at selected positions in the target sequence. The composition includes an uncharged backbone with 5- or 6-membered cyclic backbone structures and selected bases attached to the backbone structures effective to hydrogen bond specifically with different oriented base-pairs in the target sequence. Also disclosed are subunits useful for the construction of the polymer composition. The present invention further includes methods for (i) coupling a first free or polymer-terminal subunit, and (ii) isolating, from a liquid sample, a target duplex nucleic acid fragment having a selected sequence of base-pairs.Type: GrantFiled: November 23, 1992Date of Patent: April 11, 1995Assignee: Anti-Gene Development GroupInventors: James E. Summerton, Dwight D. Weller
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Patent number: 5294352Abstract: A composition for the detackification and clarification of acid and alkaline paint and lacquer waste waters and paint spray booth wastes, comprising:an inorganic-organic and/or organic adduct alloy polymer composition having the formula:A.multidot.B.sup.+ .multidot.D.sup.+wherein:A=[(SiO.sub.2 /Me.sup.I.sub.2 O).sub.u Me.sup.II.sub.m Me.sub.m.sup.III(OH) p.sup.(SO 4.sup.) y.sup.(Aci) (2m+3n)-p-2y].sub.4wherer=1 to 98% bw;u=0 to 10% bw; ##STR1## where: x=0 to 98% bw; Z is a divalent substituted or unsubstituted aliphatic, cycloaliphatic, heterocyclic or aromatic radicalD.sup.+ (PQAM).sub.wwherew=2 to 98% b.w. of polyquaternized polymer (PQAM)Me.sub.m.sup.II is selected from the divalent cationic group comprising: Mg, Zn, Ca, and Fe.sup.2+m=0 to 5Me.sub.n.sup.III is a tri-or more valent metal selected from the group comprising: Fe, Al, and Al-Zn complexes;n=1 to 20Aci is selected from the monovalent anionic group comprising Cl.sup.-, Br.sup.-, I.sup.-, NO.sub.3 --, H.sub.2 PO.sub.4 --, CH.sub.3 COO.sup.-, OH.Type: GrantFiled: April 15, 1993Date of Patent: March 15, 1994Inventor: John J. Waldmann
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Patent number: 5270355Abstract: A paper coated resin has been provided which simultaneousy provides coated papers with improved ink receptivity, water resistance and blister resistance in a good balance. The resin is obtainable by introducing alicyclic amino and/or alicyclic epoxy compounds into a polyalkylenepolyamine-urea-aldehyde(epihalohydrin) resin or by introducing alicyclic amino and/or alicyclic epoxy compounds into a polyalkylenepolyamine-urea-aldehyde(epihalohydrin) resin and/or an amine-epihalohydrin resin and reacting or mixing these resins.Type: GrantFiled: January 13, 1992Date of Patent: December 14, 1993Assignee: DIC-Hercules Chemicals, Inc.Inventors: Hiroharu Kawano, Satoshi Takizawa, Hiroki Owaki, Haruka Hirayama
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Patent number: 5236980Abstract: A novel composition is a solution in an organic solvent of an electron donor-acceptor complex of a conjugated aromatic polyazomethine compound and a Lewis acid compound. This composition is coated on a transparent support and the solvent is evaporated to produce an optical device. Decomposition of the polyazomethine-Lewis acid complex coated on the substrate produces a new optical device comprising a film of the polyazomethine compound on the substrate. Compositions of the present invention can also be used for the preparation of optical wave guides, optical switching elements, fibers, and dielectric materials.Type: GrantFiled: June 26, 1992Date of Patent: August 17, 1993Assignee: The University of RochesterInventors: Samson A. Jenekhe, Chen-Jen Yang
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Patent number: 5158611Abstract: A process for producing a resin is disclosed, comprising reacting (a) a polyalkylenepolyamine, (b) an alicyclic dibasic carboxylic acid and/or a reaction product having a free carboxyl group that is obtained by reacting an alicyclic dibasic carboxylic acid with a glycol, (c) a urea, and (d) an aldehyde and/or an alkylating agent. The resulting resin is useful as a wet strength agent to provide a paper coating composition having improved printability and printing effects.Type: GrantFiled: August 22, 1991Date of Patent: October 27, 1992Assignee: Sumitomo Chemical Co., Ltd.Inventors: Shigeru Ura, Haruo Tanaka, Hisao Takagishi, Yoshiya Fukuyama, deceased, Hiroko Fukuyama, heir, Takuya Fukuyama, heir, Yuko Fukuyama, heir
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Patent number: 5079330Abstract: A polyoxymethylene multi-copolymer obtainable by copolymerizing(a) trioxane,(b) at least one cyclic ether or formal compound chosen from the group of ethylene oxide, 1,3-dioxolane, 1,3-dioxepane, 1,3,5-trioxepane and 1,3,6-trioxocane, and(c) at least one compound chosen from the group of glycidyl phenyl ether, styrene oxide and glycidyl naphthyl ether,and characterized in that the number average molecular weight of said polyoxymethylene multi-copolymer is from 10,000 to 100,000, that the melting point (Tm) and crystallization temperature (Tc) there of are in a relationship ofTm-Tc<15 (.degree.C.)and that the size of the spherulites is 10 .mu.m or less, or a resin composition comprised of this polyoxymethylene multi-copolymer and a polyoxymethylene resin, is distinguished in crystallinity, mechanical strength and surface appearance and is particularly suited for faster cycle molding.Type: GrantFiled: August 6, 1990Date of Patent: January 7, 1992Assignee: Toray Industries, Inc.Inventors: Yoshiki Makabe, Shigeru Okita, Yoshiyuki Yamamoto
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Patent number: 5068279Abstract: A melamine-formaldehyde detackifer having less than 0.15% free formaldehyde comprises a melamine-formaldehyde polymer detackifier to which has been added a formaldehyde scavenging agent comprising an effective amount of urea, and an enhancer selected from glyoxal and acetylacetone. The use of the low free formaldehyde detackifier is also described.Type: GrantFiled: March 30, 1990Date of Patent: November 26, 1991Assignee: Calgon CorporationInventor: Lewis D. Morse
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Patent number: 5049645Abstract: A continuous preparation method of an amino resin particulate having a maximum particle size of 40 .mu.m or less and an average particle size of from 5 to 15 .mu.m is described. The method comprises the steps of reacting amino compounds with aldehydes in the presence of an acid catalyst in an aqueous solution to form a solid product and classifying said solid product in the form of a slurry with a combination of at least two grinders and at least two classifiers.Type: GrantFiled: March 12, 1990Date of Patent: September 17, 1991Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Muneo Nagaoka, Saburo Hayano
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Patent number: 5034501Abstract: A process for producing a resin is disclosed, comprising reacting (a) a polyalkylenepolyamine, (b) an alicyclic dibasic carboxylic acid and/or a reaction product having a free carboxyl group that is obtained by reacting an alicyclic dibasic carboxylic acid with a glycol, (c) a urea, and (d) an aldehyde and/or an alkylating agent. The resulting resin is useful as a wet strength agent to provide a paper coating composition having improved printability and printing effects.Type: GrantFiled: September 18, 1990Date of Patent: July 23, 1991Assignee: Sumitomo Chemical Co., Ltd.Inventors: Shigeru Ura, Haruo Tanaka, Hisao Takagishi, Yoshiya Fukuyama, deceased
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Patent number: 5030726Abstract: The present invention relates to polymerizable cyclic urea derivatives which can be thermally split to give rise to an isocyanate group; and to a polymer having cyclic urea pendant groups, which can be cured by heating without any additional curing agent such as an isocyanate blocked with a volatile lower molecular weight material, so that volatile material is not released in a thermal curing process.Type: GrantFiled: December 29, 1989Date of Patent: July 9, 1991Assignee: Nippon Paint Co., Ltd.Inventors: Tsuboniwa Noriyuki, Urano Satoshi, Umemoto Hirotoshi, Sakamoto Hiroyuki, Tobinaga Kenshiro, Tsuchiya Yasuyuki
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Patent number: 5017641Abstract: Aqueous nonwoven binders that give reduced formaldehyde emission on curing are based on condensation products of urea or derivatives thereof, formaldehyde and glyoxal in a molar ratio, based on the solid binder, of from 1.5 to 2.5 moles of formaldehyde and from 0.1 to 0.5 mole of glyoxal per mole of the total urea used.Type: GrantFiled: May 2, 1989Date of Patent: May 21, 1991Assignee: BASF AktiengesellschaftInventors: Fritz E. Kempter, Franz Matejcek, Werner Neubach, Klaus Flory
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Patent number: 5004798Abstract: Cationic copolymerization of trioxane and trimethylolpropane (TMP) formal or its ester derivatives yields acetal copolymers having pendant functional groups. The TMP formal or ester derivatives of TMP formal may therefore include functional groups selected from hydroxyl or ester moieties which are protected and thus survive the copolymerization with trioxane. These groups may then be present as functional reactive sites for the subsequent synthesis of block copolymers and/or to chemically bind modifiers to the acetal copolymer backbone, for example.Type: GrantFiled: May 12, 1989Date of Patent: April 2, 1991Assignee: Hoechst Celanese CorporationInventors: Jerry A. Broussard, Andrew B. Auerbach, Nan L. Yang, James L. Paul, Yong C. Zheng, Chong L. Zhang
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Patent number: 4990593Abstract: Disclosed is a water-dissipatable polyester containing a sulfonate group and at least 10 mole percent of a multifunctional or branch-inducing moiety. The polyester is useful to prepare coatings such as paints.Type: GrantFiled: July 13, 1990Date of Patent: February 5, 1991Assignee: Eastman Kodak CompanyInventor: William W. Blount
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Patent number: 4983708Abstract: Cationic copolymerization of trioxane with glycidyl ester derivatives, preferably glycidyl acrylate derivatives, produces thermally stable, usually cross-linked, acetal copolymer. The resulting acetal copolymer will exhibit side chain ester functionality, and particularly side chain vinyl functionality when glycidyl acrylate derivatives are employed, so as to permit its futher reaction with other chemical moieties to achieve an acetal copolymer of modified chemical and/or physical properties.Type: GrantFiled: May 12, 1989Date of Patent: January 8, 1991Assignee: Hoechst Celanese CorporationInventors: Nan L. Yang, Andrew Auerbach, Rose. Pesce, Jerry A. Broussard, James L. Paul