Formaldehyde-free vinyl acetate/ethylene/N-acryl-amidoglycolic acid copolymers useful as non-woven binders

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EP 0 237 643 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	05.07.1989 Bulletin 1989/27

(43)	Date of publication A2:
	23.09.1987 Bulletin 1987/39

(21)	Application number: 86117659.2

(22)	Date of filing: 18.12.1986

(51)	International Patent Classification (IPC)⁴: D04H 1/64

(84)	Designated Contracting States:
	BE DE FR GB IT NL SE

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Priority:

24.12.1985 US 813111

(71)	Applicant: AIR PRODUCTS AND CHEMICALS, INC.
	Allentown, Pennsylvania 18105 (US)

(72)	Inventors:
	Goldstein, Joel Erwin Allentown PA 18104 (US) Pinschmidt, Robert Kratz Allentown PA 18104 (US) Lenney, William Edward Allentown PA 18104 (US)

(74)	Representative: Kador & Partner
	Corneliusstrasse 15 80469 München 80469 München (DE)

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References cited: :

(54)	Formaldehyde-free vinyl acetate/ethylene/N-acryl-amidoglycolic acid copolymers useful as non-woven binders

(57) A copolymer binder emulsion prepared by the copolymerization of vinyl acetate, 1 to 30 wt% ethylene and 0.5 to 15 wt% acrylamidoglycolic acid. Nonwoven fabrics bonded with such copolymers possess properties comparable to that obtained using N-methylolacrylamide-containing copolymers but without the emission of formaldehyde.

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