EP0237643A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Formaldehyde-free vinyl acetate/ethylene/N-acryl-amidoglycolic acid copolymers useful as non-woven binders
Assignee: Air Products and Chemicals Inc
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Filing: 1986-12-18
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Granted: —
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Expires: 2006-12-18
Abstract
Abstract 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.
Inventors
- 👤 Joel Erwin Goldstein
- 👤 Robert Kratz Pinschmidt
- 👤 William Edward Lenney
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:52
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/587
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
35 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 1 to 30 wt% ethylene and 0.5 to 15 wtX of an N-acrylamidoglycolic acid.
Claim 2
Dependent Claim
35 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 1 to 30 wt% ethylene and 0.5 to 15 wtX of an N-acrylamidoglycolic acid.
Claim 3
Dependent Claim
15 words
The emulsion of Claim 1 in which the copolymer contains 6 to 18 wt% ethylene.
Claim 4
Dependent Claim
18 words
The emulsion of Claim 1 in which the copolymer contains 2 to 10 wt% of an N-acrylamidoglycolic acid.
Claim 5
Dependent Claim
12 words
The emulsion of Claim 1 in which the copolymer contains N-acrylamidoglycolic acid.
Claim 6
Dependent Claim
12 words
The emulsion of Claim 1 in which the copolymer contains N-methacrylamidoglycolic acid.
Claim 7
Dependent Claim
24 words
The emulsion of Claim 1 in which the copolymer also contains up to 10 wt% of a C 3 -C 10 alkenoic acid comonomer.
Claim 8
Dependent Claim
16 words
The emulsion of Claim 1 in which the copolymer contains up to 3 wt% crotonic acid.
Claim 9
Dependent Claim
14 words
The emulsion of Claim 1 in which the copolymer contains 0.5-1.5 wt% crotonic acid.
Claim 10
Dependent Claim
29 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 6-18 wt% ethylene and 2-10 wt% N-acrylamidoglycolic acid.
Claim 11
Dependent Claim
29 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 6-18 wt% ethylene and 2-10 wt% N-acrylamidoglycolic acid.
Claim 12
Dependent Claim
13 words
The emulsion of Claim 9 in which the copolymer is 10-12 wt% ethylene.
Claim 13
Dependent Claim
14 words
The.emulsion of Claim 9 in which the copolymer also contains 0.5-1.5 wt% crotonic acid.
Claim 14
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 1 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 15
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 2 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 16
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 3 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 17
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 4 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 18
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 5 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 19
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 6 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 20
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 7 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 21
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 8 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 22
Dependent Claim
39 words
A nonwoven product comprising a nonwoven web of fibers bonded 5 together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 9 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
Claim 23
Dependent Claim
40 words
21 . A nonwoven product comprising a nonwoven web of fibers bonded ) together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 10 at a binder add-on sufficient to bond the fibers together to form a'self-sustaining web.
Claim 24
Dependent Claim
38 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate-ethylene copolymer deposited from the emulsion of Claim 11 at a binder add-on sufficient to bond the fibers together to form a self-sustaining web.
References Cited (Backward Citations)
No citation records indexed.
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