scispace - formally typeset

Patent

Curable aqueous composition and use as fiberglass nonwoven binder

19 Jul 1993-

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.
Citations
More filters

Patent
26 Jul 2006-
Abstract: A curable aqueous composition is disclosed comprising a carbohydrate, a crosslinking agent, and an amine base, wherein the curable aqueous composition has a pH adjusted by the amine base. Further disclosed is a method of forming a curable aqueous solution.

167 citations


Patent
02 Oct 1998-
Abstract: Provided is a fiberglass binder which contains a polycarboxy polymer and a polyol, with a pH of the binder being no greater than 3.5. It is further preferred that the polycarboxy polymer has a molecular weight of less than 10,000, and more preferably about 5000 or less. The binder also preferably includes a catalyst which is an alkali metal salt of a phosphorus polyol is preferably triethanolamine. The binder also preferably includes a catalyst which is an alkali metal salt of a phosphorus-containing organic acid. The resultant binder, particularly when used in preparing fiberglass products, provides minimal processing difficulties and a product with excellent recovery and rigidity.

153 citations


Patent
19 Feb 1997-
Abstract: Formaldehyde-free aqueous binders containing: A) a polymer consisting of 5 to 100 wt% of an ethylenically unsaturated acid anhydride or an ethylenically unsaturated bicarboxylic acid, the carboxylic acid groups of which can form an anhydride group, and B) an alkanol amine with at least two hydroxyl groups.

118 citations


Patent
14 Jul 2003-
Abstract: A formaldehyde-free aqueous binder composition comprises a binder component (A) obtainable by reacting at least one alkanolamine with at least one carboxylic anhydride and, optionally, treating the reaction product with a base; and a binder component (B) which comprises at least one carbohydrate. The binder composition is particularly useful for bonding mineral fiber products.

105 citations


Patent
15 Aug 1997-
Abstract: A formaldehyde-free curable aqueous composition comprising: (a) a polyacid comprising at least two carboxylic acid groups, anhydride groups, or salts of the polyacid thereof; (b) an active hydrogen compound containing at least two active hydrogen groups selected from the group consisting of hydroxyl, primary amino, secondary amino, and mixtures thereof; and (c) a fluoroborate accelerator; wherein the ratio of the number of equivalents of said carboxylic acid groups, anhydride groups, or salts thereof to the number of equivalents of said hydroxyl groups is from 1/0.01 to about 1/3, and wherein said carboxylic acid groups, anhydride groups, or salts thereof are neutralized to an extent of less than 35% with a fixed base is disclosed. A method for curing formaldehyde-free polyacids and a method for bonding glass fiber heat-resistant nonwovens with a formaldehyde-free binder are further disclosed.

104 citations


References
More filters

Patent
Carl R. Strauss1, Steven H. Williams1Institutions (1)
14 Jun 1994-
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-
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
Graham Swift1, Harry J. Cenci1Institutions (1)
13 May 1976-
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 1991-
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-
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


Network Information
Related Papers (5)
14 Jun 1994

Carl R. Strauss, Steven H. Williams

02 Oct 1998

Thomas J. Taylor, Derek C. Bristol +1 more

19 Feb 1997

Hummerich Rainer, Axel Kistenmacher +4 more

02 Jan 2002

Thomas J. Taylor, Derek C. Bristol

Performance
Metrics
No. of citations received by the Paper in previous years
YearCitations
20212
20206
20182
20174
20168
20158