Patent•
Curable aqueous composition and use as fiberglass nonwoven binder
19 Jul 1993-
TL;DR: In this paper, a formaldehyde-free curable aqueous composition containing a polyacid, a polyol and a phosphorous-containing accelerator was proposed for heat resistant nonwovens.
Abstract: This invention relates to a formaldehyde-free curable aqueous composition containing a polyacid, a polyol and a phosphorous-containing accelerator. The composition may be used as a binder for heat resistant nonwovens such as nonwovens composed of fiberglass.
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Patent•
06 Feb 1997
TL;DR: By carefully adjusting the molecular weight and amounts of methacrylic acid and maleic acid and/or maleic anhydride comonomers, binder-treated fiberglass cured and B-staged product throughput may be maintained at production rates designed for phenol/formaldehyde binders due to the lower thermal requirements for cure as discussed by the authors.
Abstract: By carefully adjusting the molecular weight and amounts of methacrylic acid and maleic acid and/or maleic anhydride comonomers in polyacrylic acid-based fiberglass binders, binder-treated fiberglass cured and B-staged product throughput may be maintained at production rates designed for phenol/formaldehyde binders due to the lower thermal requirements for cure as compared to homopolyacrylic acid-based binder systems.
59 citations
Patent•
04 Dec 2008TL;DR: In this paper, a sizing composition for insulating products based on mineral wool, especially glass or rock, which comprises at least one monosaccharide and / or polysaccharide, and at least organic polycarboxylic acid having a molar mass less than or equal to 1000.
Abstract: La presente invention se rapporte a une composition d'encollage pour des produits isolants a base de laine minerale, notamment de verre ou de roche, qui comprend au moins un monosaccharide et/ou au moins un polysaccharide, et au moins un acide organique polycarboxylique ayant une masse molaire inferieure ou egale a The present invention relates to a sizing composition for insulating products based on mineral wool, especially glass or rock, which comprises at least one monosaccharide and / or at least one polysaccharide and at least one organic polycarboxylic acid having a molar mass less than or equal to 1000. Elle a egalement pour objet les produits isolants a base de fibres minerales obtenus et leur procede de fabrication. 1000. It also relates to insulation products based on mineral fibers obtained and their manufacturing process.
58 citations
Patent•
19 Feb 1997
TL;DR: The use of a formaldehyde-free aqueous binder comprising A) a polymer obtained by free-radical polymerization comprising 5-100% by weight of an ethylenically unsaturated acid anhydride or B) an alkanolamine having at least two hydroxyl groups as a coating composition for shaped articles as discussed by the authors.
Abstract: The use of a formaldehyde-free aqueous binder comprising A) a polymer obtained by free-radical polymerization comprising 5-100% by weight of an ethylenically unsaturated acid anhydride or of an ethylenically unsaturated dicarboxylic acid whose carboxyl groups may form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups as a coating composition for shaped articles.
57 citations
Patent•
16 Jun 2006
TL;DR: An aqueous binder composition, useful for making fiber products, especially fiberglass insulation, comprising a polyol and a hydrolyzed (solubilized) copolymer of maleic anhydride and a vinyl aromatic compound, is described in this article.
Abstract: An aqueous binder composition, useful for making fiber products, especially fiberglass insulation, comprising an aqueous substantially alkaline (pH of at least 5.0) solution of a polyol and a hydrolyzed (solubilized) copolymer of maleic anhydride and a vinyl aromatic compound, preferably styrene (i.e., a SMA copolymer); the copolymer is solubilized using ammonia, an ammine, a primary alkanolamines (preferably monoethanolamine), a secondary alkanolamine (preferably diethanolamine (DEA)), a tertiary alkanolamine (preferably triethanolamine (TEA)), or a mixture thereof and the binder composition is cured as a consequence of cross-linking, esterification reactions between pendant carboxyls on the solubilized (hydrolyzed) copolymer (SMA) chains and hydroxyl groups of the polyol, including the diethanolamine and/or triethanolamine preferably used in the solubilization of the SMA.
55 citations
Patent•
21 Mar 2002TL;DR: In this article, a binder composition, obtained by polymerizing acrylic acid monomer in water in the presence of a cure accelerator comprising an alkali metal salt of a phosphorous-containing inorganic acid to form a low molecular weight polyacrylic acid and subsequently reacting with a polyhydroxy crosslinking agent in a cross-linking step to make a composition suitable for use as a component in fiberglass.
Abstract: A binder composition, obtained by polymerizing acrylic acid monomer in water in the presence of a cure accelerator comprising an alkali metal salt of a phosphorous-containing inorganic acid to form a low molecular weight polyacrylic acid and subsequently reacting said low molecular weight polyacrylic acid with a polyhydroxy crosslinking agent in a crosslinking step to make a composition suitable for use as a component in a binder for fiberglass. A significant improvement involves conducting the crosslinking step in the absence of added catalyst. Moreover, satisfactory results are obtained in the absence of conventional undesirable sulfur odors.
54 citations
References
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Patent•
14 Jun 1994TL;DR: A fibrous glass binder comprises a polycarboxy polymer, a β-hydroxyalkylamide, and an at least trifunctional monomeric carboxylic acid as discussed by the authors.
Abstract: A fibrous glass binder comprises a polycarboxy polymer, a β-hydroxyalkylamide, and an at least trifunctional monomeric carboxylic acid.
195 citations
Patent•
10 Apr 1989
TL;DR: In this article, the catalysts for the rapid esterification and crosslinking of fibrous cellulose in textile form by polycarboxylic acids at elevated temperatures are disclosed.
Abstract: Catalysts for the rapid esterification and crosslinking of fibrous cellulose in textile form by polycarboxylic acids at elevated temperatures are disclosed. The catalysts are acidic or weakly basic salts selected from the alkali metal dihydrogen phosphates and alkali metal salts of phosphorous, hypophosphorous, and polyphosphoric acids. Suitable polycarboxylic acids include saturated, unsaturated and aromatic acids, as well as alpha-hydroxy acids. The textiles so treated exhibit high levels of wrinkle resistance and smooth drying properties durable to repeated laundering in alkaline detergents, and do not contain or release formaldehyde.
140 citations
Patent•
13 May 1976
TL;DR: In this article, self-curing copolymers containing carboxy and β-hydroxyalkylamide functionality are disclosed, either known compounds or may be prepared by treating an ester with an appropriately substituted amine.
Abstract: β-HYDROXYALKYLAMIDES AND CERTAIN POLYMERS THEREOF ARE DISCLOSED AS CURING AGENTS FOR POLYMERS CONTAINING ONE OR MORE CARBOXY OR ANHYDRIDE FUNCTIONS. Also, self-curing copolymers containing carboxy and β-hydroxyalkylamide functionality are disclosed. The β-hydroxyalkylamides are either known compounds or may be prepared by treating an ester with an appropriately substituted amine. The β-hydroxyalkylamides are effective in solution, aqueous emulsion and powder coating formulations.
132 citations
Patent•
06 May 1991TL;DR: In this article, a method for making a heat resistant nonwoven fabric is provided, in which a formaldehyde-free binder composition containing a carboxy group, or carboxyl anhydride, or salts of a car boxy group is used.
Abstract: A method for making a heat resistant nonwoven fabric is provided. A formaldehyde-free binder composition containing a carboxy group, or a carboxylic anhydride, or salts of a carboxy group; and a β-hydroxyalkyl amide contacts a nonwoven fabric containing heat-resistant fibers, and heating the binder composition is effected.
83 citations
Patent•
30 Oct 1991
TL;DR: In this paper, the use of cellulose cross-linking agents of derivatives of alkanepolycarboxylic acids corresponding to general formula I:STR1## in which: n, m=0 or 1, R 1, R 3, R 5 and R 7 =H or COOH was discussed.
Abstract: Use as cellulose cross-linking agents of derivatives of alkanepolycarboxylic acids corresponding to general formula I: ##STR1## in which: n, m=0 or 1, R 1 , R 3 , R 5 and R 7 =H or COOH it being understood that at least two of the substituents from the said substituents R 1 , R 3 , R 5 and R 7 represent a carboxyl group, R 2 , R 4 , R 6 , R 8 =H or PO(OH)(OR) where R=H or Alk C 1 -C 4 , it being understood that only one substituent from the said substituents R 2 , R 4 , R 6 and R 8 represents said PO(OH)(OR) group, textile finishes containing said products of formula I and new derivatives of formula I.
27 citations