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US 8,299,174 B2Granted
Rapid cure carbohydrate composition
AssigneeRohm and Haas Company
InventorsJean Marie Brady, Michael DeWayne Kelly, Barry Weinstein
Life of this patent
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Abstract
A curable binder composition consisting essentially of one or more ammonium salt of an inorganic acid and at least one carbohydrate, and the use thereof as a thermosetting binder. Also described are composite materials comprising the curable binder composition, and methods of application.
Claims12
An aqueous formaldehyde free composition comprising, as a percentage by weight of solids:
- a. from 25% to 92% of one or more carbohydrate chosen from the group consisting of:
- a monosaccharide, a disaccharide, a polysaccharide, a derivative thereof, and a combination thereof;
- b. at least 8% of one or more salt, which salt is an ammonium salt of an inorganic acid;
- and
- further comprising an emulsion polymer in an amount of from 5% to 50%, the emulsion copolymer chosen from a high acid polymer of from 4 to 40 wt. % based on copolymer solids, of a copolymerized carboxy monomer, a low acid polymer, and a polymer comprising a copolymerized multi-ethylenically unsaturated monomer.
2 more elements
A composite material comprising:
- (a) a substrate material selected from fibers, slivers, chips, particulate matter, and combinations thereof;
- and
- (b) a cured binder composition derived from an aqueous formaldehyde free composition comprising, as a percentage by weight of solids:
- i. from 25% to 87% of one or more carbohydrate chosen from the group consisting of:
- a monosaccharide, a disaccharide, a polysaccharide, or a derivative thereof;
- ii. at least 8% of one or more salt, which salt is an ammonium salt of an inorganic acid;
- and
- iii. from 5% to 50% of one or more emulsion polymer chosen from a high acid polymer of from 4 to 40 wt. % based on copolymer solids, of a copolymerized carboxy monomer, a low acid polymer and a polymer comprising a copolymerized multi-ethylenically unsaturated monomer.
5 more elements
An aqueous formaldehyde free composition comprising, as a percentage by weight of solids:
- a. from 25% to 92% of one or more carbohydrate chosen from the group consisting of:
- a monosaccharide, a disaccharide, a polysaccharide, a derivative thereof, and a combination thereof;
- and
- b. at least 8% of one or more salt, which salt is an ammonium salt of an inorganic acid;
- and,
- further comprising a Lewis acid chosen from titanates and zirconates, organo-tin salts, inorganic tin salts, MgCl2.6H2O, AlK(SO4)2, 10H2O, and Al2Zn(SO4)4.
3 more elements
A composite material comprising:
- (a) a heat resistant substrate material selected from fibers, slivers, chips, particulate matter, and combinations thereof;
- and
- (b) a cured binder composition derived from an aqueous formaldehyde free composition comprising, as a percentage by weight of solids:
- i. from 25% to 92% of one or more carbohydrate chosen from the group consisting of:
- a monosaccharide, a disaccharide, a polysaccharide, or a derivative thereof;
- ii. at least 8% of one or more salt, which salt is an ammonium salt of an inorganic acid;
- and
- iii. further comprising a Lewis Acid.
5 more elements
Dependencies are inferred from the claim text.