Abstract: Alpha-aminoethylene phosphonate betaines of the formula ##STR1## R.sup.1 is hydrogen or methyl; X is ##STR2## a is 0, 1, 2 or 3, with the condition that when X is ##STR3## that a be greater than 1; R.sup.2 and R.sup.3 are independently C.sub.1 -C.sub.6 alkyl, aryl, benzyl, or cyclohexyl;Y is hydrogen or hydroxyl;b is 0, 1, 2, or 3;Z is C.sub.1 -C.sub.6 alkyl, aryl, benzyl, cyclohexyl, or ##STR4## and M is hydrogen, metallic cation, or ammonium ion are disclosed as are homo- and copolymers thereof.
Type:
Grant
Filed:
July 13, 1987
Date of Patent:
October 18, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: A multi-step process for the preparation of ethynylbenzaldehydes from bromo- or iodobenzaldehydes is disclosed. The arylhalogen is replaced with a protected ethynyl compound which is subsequently cleaved by base to form the arylacetylene. The aldehydic functionality is preserved by formation of a corresponding Schiff's base or acetal, and its subsequent regeneration by treatment with aqueous acid.
Type:
Grant
Filed:
August 11, 1987
Date of Patent:
August 23, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: Hot melt pressure sensitive prepared from (a) a rubbery block copolymer containing a rubbery polyisoprene midblock portion and a plurality of crystalline poly(vinylarene) endblocks; (b) a tackfying resin compatible with the midblock portion and (c) poly(alkyloxazoline); and (d) an antioxidant. These adhesives are characterized by exceptional elastic memory, high tensile strength and excellent peel adhesion and, as such, are especially suited for use in elasticized bands for disposable items.
Type:
Grant
Filed:
July 13, 1987
Date of Patent:
August 2, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: Temporarily bonded constructions, i.e., credit cards attached to paper stock for mailing to customers, may be prepared utilizing a non-pressure sensitive hot melt adhesive comprising 5-40% of specific A-B.A block copolymers and 95-60% plasticizing oil.
Type:
Grant
Filed:
April 10, 1987
Date of Patent:
August 2, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: A wide range of materials may be encapsulated in a starch matrix by combining the material with a high temperature-stabilized pressurized dispersion of starch in the presence of salt. The temperature-stabilized starch dispersion acts as a protective colloid; upon subsequent rapid reduction of the pressure, the mixture cools and the starch polymer chains collapse upon themselves, encapsulating the core material in particulate form.
Type:
Grant
Filed:
December 24, 1986
Date of Patent:
July 5, 1988
Assignee:
National Starch and Chemical Corporation
Inventors:
James Eden, Ralph Trksak, Robert Williams
Abstract: Adhesive compositions having a Tg of -45.degree. to -25.degree. C. suitable for application to plasticized polyvinyl chloride comprising 30-70% by weight of a vinyl ester of a alkenoic acid; 10-30% by weight ethylene; 20-40% by weight of a di-2-ethylhexyl maleate or di-n-octyl maleate or the corresponding fumarate; and 1 to 10% by weight of a mono-carboxylic acid.
Type:
Grant
Filed:
February 2, 1987
Date of Patent:
June 28, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: A binder suitable for dielectric sealing may be prepared comprising a blend of a polyvinyl halide emulsion and an aqueous emulsion comprising a vinyl ester of an alkanoic acid interpolymerized with(a) 5 to 28% by weight of ethylene;(b) 0.5 to 4% by a weight of an N-methylol containing copolymerizable monomer;(c) 0 to 3% by weight of a latex stabilizer; and(d) 0 to 1% by weight of at least one polyunsaturated copolymerizable monomer,the binder having a Tg of -15.degree. to +35.degree. C. and being buffered to a pH greater than 7.
Type:
Grant
Filed:
May 7, 1987
Date of Patent:
May 24, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: Woven pile fabrics, particularly upholstery fabrics and corduroy, characterized by a superior balance of strength and softness are back-coated utilizing an aqueous emulsion prepared by the emulsion polymerization of a vinyl ester of an alkanoic acid interpolymerized with 10 to 30% by weight ethylene; 15 to 40% by weight of a C.sub.4 -C.sub.10 dialkyl maleate; to 5% by weight of copolymerizable N-methylol containing monomer; 0 to 4% by weight of an olefinically unsaturated carboxylic acid and 0 to 1% by weight of a polyethylenically unsaturated comonomer.
Type:
Grant
Filed:
September 8, 1986
Date of Patent:
April 26, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: Cationic cellulose graft copolymers obtained by the graft polymerization of a cellulose substrate and a cationic monomer are useful as textile treatment agents, especially as dye enchancers. As pretreatment agents, they improve dye yield, dye levelness and dye fastness properties and as after-treatment agents, they improve dye fastness and crock resistance properties.
Type:
Grant
Filed:
October 27, 1986
Date of Patent:
April 12, 1988
Assignee:
National Starch and Chemical Corporation
Inventors:
Martin Tambor, Jerry L. Cope, John L. Jerome
Abstract: Woven pile fabrics, particularly upholstery fabrics and corduroy, characterized by a superior balance of strength and softness are backcoated utilizing an aqueous emulsion prepared by the emulsion polymerization of: 30 to 50% by weight of a vinyl ester of an alkanoic acid; 10 to 30% by weight ethylene; 30 to 50% by weight of a C.sub.4 -C.sub.8 alkyl acrylate; 1 to 5% by weight of copolymerizable N-methylol containing monomer; 0 to 4% by weight of an olefinically unsaturated carboxylic acid and 0 to 1% by weight of a polyethylenically unsaturated comonomer.
Type:
Grant
Filed:
September 8, 1986
Date of Patent:
April 12, 1988
Assignee:
National Starch and Chemical Corporation
Inventors:
Edward Wotier, David Lunsford, Howard Katz
Abstract: Novel mono- or difunctional phenylacetylene-substituted Schiff's base monomers useful in the preparation of electrically conducting polymers is disclosed. On heating, these monomers melt to a viscous liquid state, and on continued heating above about 300.degree. C. polymerize to form an electrically insulating thermoset polymer. On further post-cure heat treatment, the polymer becomes electroconductive showing a bulk conductivity of at least 10.sup.-2 S/cm.
Type:
Grant
Filed:
February 26, 1987
Date of Patent:
March 8, 1988
Assignee:
National Starch and Chemical Corporation
Abstract: Hot melt adhesive compositions prepared from styrene-isoprene-styrene block copolymers, a low softening point highly aliphatic resin and a metallic salt of a fatty acid exhibit a superior balance of properties in that they adhere well to a variety of substrates yet can be readily and cleanly removed when desired.
Abstract: A paper size having the ability to be prepared under low shear conditions and having sizing properties superior to the sizes of the prior art may be prepared comprising water and 0.1 to 15% by weight of at least one hydrophobic sizing agent and 0.4 to 30% by weight of a jet cooked dispersion of a long chain alkyl derivative of starch or a dispersion of a corresponding gum derivative.
Type:
Grant
Filed:
April 30, 1987
Date of Patent:
January 26, 1988
Assignee:
National Starch and Chemical Corporation
Inventors:
Peter T. Trzasko, Martin M. Tessler, Ralph Trksak, Wadym Jarowenko
Abstract: Latex adhesives having a Tg of -60.degree. to 0.degree.C. characterized by superior rheological properties, are prepared without the use of additional thickeners from a colloid stabilized latex comprising: 65-90% by weight of the latex polymer solids of an acrylate or methacrylate ester monomer polymerized in 10-35% by weight of the latex solids of a polymeric colloid, the polymeric colloid having a Tg of -40.degree. to 0.degree.C., a number average molecular weight of 2,000 to 10,000 and comprising(a) 50 to 85% by weight of a monomer of the formula: ##STR1## where R' is hydrogen or methyl and R" is a C.sub.1 -C.sub.12 straight or branched chain alkyl group;(b) 10 to 50% by weight of an ethylenically unsaturated mono- or dicarboxylic acid;(c) 5 to 30% by weight of an acrylic or methacrylic ester of a polyalkylene oxide, and(d) 0 to 30% by weight of another ethylenically unsaturated copolymerizable monomer.
Type:
Grant
Filed:
November 17, 1986
Date of Patent:
January 26, 1988
Assignee:
National Starch and Chemical Corporation
Inventors:
Carmine P. Iovine, Yen-Jer Shih, Paul B. Foreman
Abstract: Leakage resistant waste barriers for use on absorbent articles are prepared by coating a portion of a nonwoven sheet with a water insoluble or water impermeable hot melt adhesive composition.
Type:
Grant
Filed:
June 26, 1986
Date of Patent:
January 12, 1988
Assignee:
National Starch and Chemical Corporation
Inventors:
Paul P. Puletti, Stanley J. Decowski, Jr.
Abstract: The removability of acrylate based pressure sensitive adhesives is substantially improved by the addition thereto of a small amount of an organofunctional silane monomer.
Type:
Grant
Filed:
November 25, 1985
Date of Patent:
December 29, 1987
Assignee:
National Starch and Chemical Corporation
Abstract: A process for the formation of the hinge joints on bound book blocks using a hot melt pressure sensitive adhesive comprising:(a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer where the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer;(b) 45 to 70% by weight of a compatible tackifying resin;(c) 5 to 30% by weight of a plasticizing oil;(d) 0 to 5% by weight of a petroleum derived wax; and(e) 0.1 to 2% by weight of a stabilizer.
Type:
Grant
Filed:
February 19, 1986
Date of Patent:
December 15, 1987
Assignee:
National Starch and Chemical Corporation
Abstract: Foamable, storage stable flocking adhesives are prepared from an aqueous emulsion prepared by the emulsion polymerization of a vinyl ester of an alkanoic acid interpolymerized with:(a) 5 to 30% by weight of ethylene;(b) 0.5 to 6% by weight of an N-methylol containing copolymerizable monomer;(c) 1 to 5% by weight of an olefinically unsaturated carboxylic acid;(d) 0.2 to 3% by weight of a latex stabilizer; and(e) 0 to 1% by weight of at least one polyunsaturated copolymerizable monomer.
Type:
Grant
Filed:
May 13, 1987
Date of Patent:
December 15, 1987
Assignee:
National Starch and Chemical Corporation