Patents Examined by Lucille M. Phynes
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Patent number: 4751128Abstract: Fully aromatic themotropic polyesters are based on(A) from 30 to 60 mol % of 4-hydroxybenzoic acid,(B) from 20 to 35 mol % of a mixture of(B.sub.1) terephthalic acid and(B.sub.2) isophthalic acid,the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 35 mol % of a mixture of(C.sub.1) hydroquinone,(C.sub.2) 4,4'-dihydroxydiphenyl and(C.sub.3) from 0 to 5 mol % of a dihydroxy compound of the general formula I ##STR1## where R and R' are each C.sub.1 -C.sub.4 -alkyl, halogen or aryl, n is 1, 2 or 3 and m is 0 or 1,the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.Type: GrantFiled: July 31, 1987Date of Patent: June 14, 1988Assignee: BASF AktiengesellschaftInventors: Michael Portugall, Bernd Hisgen, Hans-Jakob Kock, Erhard Seiler, Gerd Blinne
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Patent number: 4749774Abstract: Composition useful for molding into articles which as food containers, beverage bottles, cured structural plastics and the like comprising molding grade linear or unsaturated polyester or polycarbonate having reacted therewith or copolymerized therein the residue of one or more poly-methine compounds having the formula: ##STR1## wherein each R.sup.1 is independently selected from cyano, carboxy, alkenyloxycarbonyl, or a substituted or unsubstituted alkoxycarbonyl, cycloalkoxoycarbonyl or aryloxycarbonyl radical;each R.sup.2 is independently selected from one of the groups specified for R.sup.1 or an unsubstituted or substituted aryl, carbamoyl, alkanoyl, cycloalkanoyl, aroyl, alkylsulfonyl, cycloalkylsulfonyl, arylsulfonyl or aromatic, heterocyclic radical;each R.sup.3 is independently selected from hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical;A.sup.1 and A.sup.Type: GrantFiled: July 27, 1987Date of Patent: June 7, 1988Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Clarence A. Coates, Jr., Wayne P. Pruett, Samuel D. Hilbert
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Patent number: 4749769Abstract: Fully aromatic mesomorphic polyesters which give a liquid crystalline filament-forming melt below 300.degree. C. consist of(a) from 5 to 25 mol % of repeating units of the formula I ##STR1## (b) from 5 to 25 mol % of repeating units of the formula II ##STR2## (c) from 10 to 50 mol % of repeating units of the formula III ##STR3## and (d) not less than 10 mol % of repeating units of the formula IV ##STR4## the sum of the molar amounts of components (a), (b), (c) and (d) being 100 mol %, and the molar ratio of components (a) and (b) to component (c) being from 0.9:1 to 1.1:1.Type: GrantFiled: June 22, 1987Date of Patent: June 7, 1988Assignee: BASF AktiengesellschaftInventors: Hans-Jakob Kock, Michael Portugall, Bernd Hisgen, Jurgen Mertes
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Patent number: 4749775Abstract: Polyester polymers consisting essentially of repeating units having the formula ##STR1## repeating units having the formula--O--Ar.sup.1 --CO-- [II],repeating units having the formula--O--Ar.sup.2 --O-- [III],and repeating units having the formula ##STR2## wherein Ar.sup.1 is selected from ##STR3## Ar.sup.2 is selected from ##STR4## halogen substituted radicals of these radicals, and ##STR5## wherein X is selected from --O--, --S--, --SO.sub.2 --, --CO--, --O(CH.sub.2).sub.n O--.--CH.sub.2).sub.n, and ##STR6## wherein each n independently represents a member having a value of from 1 to 10, and each R.sup.4 is independently selected from alkyl radicals of 1 to 5 carbon atoms, andR.sup.2 and R.sup.3 are independently selected from hydrogen atom, halogen radicals, alkyl radicals of 1 to 5 carbon atoms, and phenyl radical, and R.sup.2 and R.sup.3 may be identical or different from each other, andR.sup.Type: GrantFiled: July 7, 1987Date of Patent: June 7, 1988Assignee: Idemitsu Kosan Co., Ltd.Inventors: Tetsuro Takeya, Tatsuya Tomioka, Shigeru Murakami, Kenkichi Takahashi
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Patent number: 4749770Abstract: Wholly aromatic, mesomorphic polyesters which give a homogeneous liquid crystalline melt at below 320.degree. C. consist of(a) not less than 10 mol % of repeating units of the formula I ##STR1## (b) from 1 to 25 mol % of repeating units of the formula II ##STR2## (c) from 5 to 20 mol % of one or more of the repeating units of the formulae III to VII ##STR3## (d) from 5 to 15 mol % of repeating units of the formula VIII ##STR4## and (e) from 10 to 60 mol % of repeating units of the formula IX ##STR5## the sum of the molar amounts of (a), (b), (c), (d) and (e) being 100 mol % in each case and the molar ratio of the components (b)+(c)+(d) to component (e) being from 0.9:1 to 1.1:1.Type: GrantFiled: June 30, 1987Date of Patent: June 7, 1988Assignee: BASF AktiengesellschaftInventors: Hans-Jakob Kock, Michael Portugall, Bernd Hisgen, Juergen Mertes
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Patent number: 4749772Abstract: A composition useful for molding into articles such as food containers, soft drink bottles, cured structural plastics and the like, comprising molding or fiber grade linear or unsaturated polyester or polycarbonate having copolymerized therein a total of from 1.0 to about 5,000 ppm, of the residue of one or a mixture of methine reactants of the formula ##STR1## wherein A is an unsubstituted or substituted 2-furanyl, 2-thienyl or 3-thienyl radical;R.sup.1 is hydrogen or a unsubstituted or substituted alkyl, cycloalkyl or aryl radical; andR.sup.2 is hydrogen or an unsubstituted or substituted alkyl, alkenyl, cycloalkyl or aryl radical.The methine residues are present in the polymer as an integral part of the polymer chain and absorb ultraviolet radiation in the range of about 150 to about 390 nm. The residues are non-extractable from the polymer and stable at the conditions at which the polymers are manufactured and processed.Type: GrantFiled: July 20, 1987Date of Patent: June 7, 1988Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert
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Patent number: 4749773Abstract: A composition useful for molding into articles such as food containers, soft drink bottles, cured structural plastics and the like, comprising molding grade linear or unsaturated polyester or polycarbonate having reacted or copolymerized therein a total of from 100 to about 800 ppm, of the residue of one or a mixture of methine reactants of the formula ##STR1## wherein R.sup.1 is hydrogen or an unsubstituted or substituted alkyl, alkenyl, cycloalkyl or aryl radical;A.sup.1 is an unsubstituted or substituted phenylene radical;A.sup.2 is an unsubstituted or substituted 1,4-phenylene radical;R.sup.2 is hydrogen or an unsubstituted or substituted alkyl, cycloalkyl or aryl radical;R.sup.3 is cyano or ##STR2## and R.sup.4 is one of the substituents which R.sup.3 can represent or an unsubstituted or substituted carbamoyl, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, aryl or aromatic heterocyclic radicals.Type: GrantFiled: July 27, 1987Date of Patent: June 7, 1988Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert, Clarence A. Coates, Jr.
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Patent number: 4748229Abstract: Fully aromatic thermotropic polyesters are based on(A) from 30 to 60 mol % of 4-hydroxybenzoic acid,(b) from 20 to 35 mol % of a mixture of(B.sub.1) terephthalic acid and(B.sub.2) isophthalic acid,the molar ratio of B.sub.1 to B.sub.2 being from 1.04:1 to 19:1, and(C) from 20 to 35 mol % of a mixture of(C.sub.1) hydroquinone,(C.sub.2) 4,4'-dihydroxydiphenyl and(C.sub.3) from 0.5 to 5 mol % of(C.sub.31) 2,7-dihydroxynaphthalene and/or(C.sub.32) 1,3-dihydroxybenzene and/or(C.sub.33) and aromatic dihydroxy compound of the general formula I ##STR1## where X is --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --S--, --SO.sub.2 --, --O-- or --CO--, and/or(C.sub.34) a compound of the general formula II ##STR2## where Y is NH.sub.2 or OH, the molar ratio of C.sub.1 to C.sub.2 being from 0.1:1 to 2.67:1 and the molar ratio of B to C being from 0.9:1 to 1.1:1.Type: GrantFiled: July 24, 1987Date of Patent: May 31, 1988Assignee: BASF AktiengesellschaftInventors: Bernd Hisgen, Hans-Jakob Kock, Michael Portugall, Erhard Seiler, Gerd Blinne
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Patent number: 4748213Abstract: Improved all-aromatic polyester resin compositions are proposed which comprise an all-aromatic polyester resin and a polyether oil. They have excellent moldability and shock resistance while retaining good heat resistance.Type: GrantFiled: June 12, 1987Date of Patent: May 31, 1988Assignee: NTN-Rulon Industries Co., Ltd.Inventor: Masao Yoshikawa
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Patent number: 4746694Abstract: The novel polyester of the present invention is capable of forming a highly tractable anisotropic melt phase. Such polyester includes a relatively low concentration of 6-oxy-2-naphthoyl moiety in combination with a more substantial concentration of 4-oxybenzoyl moiety. Other key moieties present are, 2,6-dioxynaphthalene moiety and terephthaloyl moiety. The polyester can be formed via a melt polymerization procedure to achieve a relatively high degree of polymerization in view of its relatively low melt viscosity. The polyester upon melt extrusion forms quality high performance fibers, films, and three-dimensional shaped articles. The resulting product also well retains desirable mechanical properties at elevated temperatures.Type: GrantFiled: July 6, 1987Date of Patent: May 24, 1988Assignee: Hoechst Celanese CorporationInventors: Larry F. Charbonneau, Gordon W. Calundann, Brian C. Benicewicz
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Patent number: 4746722Abstract: A cholesteric liquid crystal polyester consisting essentially of the following structural units (A), (B), (C) and (D): ##STR1##Type: GrantFiled: June 22, 1987Date of Patent: May 24, 1988Assignee: Nippon Oil Company, LimitedInventors: Shigeki Iida, Yoshihiro Kobori, Hajime Hara, Tomohiro Toya, Tetsuo Satoh
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Patent number: 4746721Abstract: A melt-processable copolyester composed of the following structural units (I), (II) and (III) and/or (IV) as main structural components, whereinunit (I) is represented by the formula ##STR1## wherein X.sub.1, X.sub.2, X.sub.3 and X.sub.4, independently from each other, represent H, F, Cl, Br, CH.sub.3 or C(CH.sub.3).sub.3, provided that X.sub.1 to X.sub.4 do not simultaneously represent H, and n is 2 or 4,unit (II) is at least one unit selected from the group consisting of ##STR2## wherein at least one of the hydrogen atoms in each aromatic ring in units (II), (III) and (IV) may be substituted by an alkyl or alkoxy group having 1 to 4 carbon atoms or a halogen atom.The proportion of unit (I) is 2.5 to 35 mole %, the proportion of unit (II) is 2.5 to 35 mole %, and the proportion of unit (III), (IV) or a combination of units (III) and (IV) is 30 to 95 mole %.Type: GrantFiled: August 5, 1986Date of Patent: May 24, 1988Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Yoshiyasu Masada, Taihei Hamasaki, Toru Mori
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Patent number: 4746566Abstract: Novel copolyesters derived from (a) aromatic diols, (b) dicarboxylic acids and (c) aromatic hydroxycarboxylic acids, in which the aromatic hydroxycarboxylic acid component (c) comprises 20 to 60 mole % of the copolyester and in which t-butyl-4-hydroxybenzoic acid constitutes 25 to 100 mole % of the aromatic hydroxycarboxylic acid component (c), are disclosed. These copolyesters are anisotropic and fabricable in the melt. They generally can be processed using conventional thermoplastic shaping techniques at temperatures below 350.degree. C. into moldings, fibres and films which have outstanding mechanical properties.Type: GrantFiled: May 6, 1987Date of Patent: May 24, 1988Assignee: E. I. DuPont de Nemours and CompanyInventor: Mark S. Connolly
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Patent number: 4745174Abstract: This invention relates to novel fiber forming polyester compositions that exhibit improved whiteness by incorporating derivatives of dibenzoisoquinolinediones of the formula ##STR1## wherein R is hydrogen, cycloalkyl, allyl, alkyl, aralkyl, alkoxyalkyl or cycloalkylalkylene;R.sub.1 is hydrogen, halogen, alkyl, alkoxy, aryloxy, alkylthio or arylthio;R.sub.2 is hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, alkylthio, arylthio, carbalkoxy, carbaryloxy, carbaralkyloxy, carboxy, sulfamoyl, alkylsulfamoyl, dialkylsulfamoyl, alkylarylsulfamoyl, cycloalkylsulfamoyl, arylsulfamoyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, alkylarylcarbamoyl, cycloalkylcarbamoyl, arylcarbamoyl, 2-pyrrolidono, acylamido or N-alkylacylamido;R.sub.Type: GrantFiled: April 23, 1987Date of Patent: May 17, 1988Assignee: Eastman Kodak CompanyInventors: Wayne P. Pruett, Samuel D. Hilbert, John G. Thompson, Max A. Weaver
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Patent number: 4745173Abstract: A composition useful for molding into articles such as food containers, soft drink bottles, cured structural plastics and the like, comprising molding or fiber grade linear or unsaturated polyester or polycarbonate having copolymerized therein a total of from 1.0 to about 20,000 ppm, of the reactant residue moieties of one or a mixture of colorants of the formula ##STR1## wherein: each R when present as a substituent, is selected from alkyl, aralkyl, cycloaliphatic, aryl, or the like; and Y is hydroxyl, alkoxy, halogen or the like completing a condensable group.Type: GrantFiled: February 24, 1987Date of Patent: May 17, 1988Assignee: Eastman Kodak CompanyInventors: Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert
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Patent number: 4743655Abstract: A polyester composition having an average molecular weight of greater than 450 comprising a most prevalent compound having a main polyester chain containing at least 17 and fewer than 52 carbon atoms and at least 6 and fewer than 18 oxygen atoms, at least 40 weight percent of the molecules of said composition having a molecular weight within 50% of the average molecular weight of the composition. The polyester composition desirably contains at least 1.6 equivalents of unreacted hydroxy groups or at least 1.6 equivalents of unreacted carboxy groups per mole. The composition contains at least four equivalents of ester links in the main chains of the molecules per mole.The composition of the present invention is obtained by the method of the invention wherein alternating series of reactions are each driven essentially to completion where the final molecule of each reaction provides the only available reaction site for the next alternate monomer reaction.Type: GrantFiled: April 20, 1987Date of Patent: May 10, 1988Assignee: NL Chemicals, Inc.Inventor: Roy C. Williams
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Patent number: 4743674Abstract: The invention relates to new aromatic polyesters based on terephthalic acid and hydroquinones, processes for their preparation from hydroquinone and terephthalic acid derivatives, and their use for the preparation of molecularly reinforced polymers.Type: GrantFiled: December 9, 1986Date of Patent: May 10, 1988Assignee: Bayer AktiengesellschaftInventors: Walter Heitz, Uwe Kampschulte, Ludwig Bottenbruch, Dieter Freitag, Hans-Rudolf Dicke
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Patent number: 4742149Abstract: The production of oxybenzoyl polyesters is facilitated by the incorporation of a salt, particularly an alkali earth metal salt, and preferably potassium sulfate, during the production enabling the consistent production from these polyesters of molded articles of improved appearance and excellent properties.Type: GrantFiled: May 10, 1985Date of Patent: May 3, 1988Assignee: Dart Industries, Inc.Inventor: Arnold B. Finestone
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Patent number: 4742151Abstract: A novel ultra-high-molecular-weight polyester prepared from aromatic dicarboxylic acid or alkyl ester thereof and alkylene glycol, and having intrinsic viscosity of not less than 1.5 and insoluble polymer content of not more than 10% by weight.Type: GrantFiled: April 23, 1987Date of Patent: May 3, 1988Assignee: Toyo Boseki Kabushiki KaishaInventors: Susumu Tate, Haruhiko Narusawa, Youichi Watanabe, Akira Chiba
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Patent number: 4740563Abstract: A crosslinked polyetherimide ester polymer comprised of the reaction products of:(i) at least one diol;(ii) at least one dicarboxylic acid or an ester forming derivative thereof;(iii) a set of reactants selected from(a) (1) at least one high molecular weight poly(oxy alkylene)diamine, and (2) at least one tricarboxylic acid or its derivative, or(b) at least one high molecular weight polyoxylene diimide diacid; and(iv) a crosslinking effective amount of at least one crosslinking agent.Type: GrantFiled: December 2, 1986Date of Patent: April 26, 1988Assignee: General Electric CompanyInventors: Russell J. McCready, John A. Tyrell