EP0281083A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Nonwoven binders of vinyl acetate/ethylene/self-crosslinking monomer/acrylamide having improved blocking resistance
Assignee: Air Products and Chemicals Inc
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Filing: 1988-03-01
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Granted: —
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Expires: 2008-03-01
Abstract
Abstract A copolymer emulsion for bonding nonwovens demonstrating increased blocking resistance comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, ethylene, a crosslinkable comonomer which is an N-acrylamidoglycolic acid or an acrylamidobutyraldehyde dialkyl acetal type compound, and a small amount of an acrylamide.
Inventors
- 👤 Joel Erwin Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 04:18
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/327; D06M15/333; D06M15/285; D06M15/29
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
100 words
In a copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 1 to 20 wt% ethylene and 0.5 to 15 wt%, based on vinyl acetate, crosslinkable comonomer which is an N-acrylamidoglycolic acid or a compound of the formula wherein R is a C 3 -C 10 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, R I is hydrogen or C,-C < alkyl group and n is 3 or 4, the improvement which comprises the copolymer also containing 0.1 to 5 wt% of an acrylamide.
Claim 2
Dependent Claim
100 words
In a copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 1 to 20 wt% ethylene and 0.5 to 15 wt%, based on vinyl acetate, crosslinkable comonomer which is an N-acrylamidoglycolic acid or a compound of the formula wherein R is a C 3 -C 10 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, R I is hydrogen or C,-C < alkyl group and n is 3 or 4, the improvement which comprises the copolymer also containing 0.1 to 5 wt% of an acrylamide.
Claim 3
Dependent Claim
15 words
The copolymer emulsion of Claim 1 which contains 0.5 to 1.5 wt% of an acrylamide.
Claim 4
Dependent Claim
9 words
The copolymer emulsion of Claim 1 which contains acrylamide.
Claim 5
Dependent Claim
12 words
The copolymer emulsion of Claim 1 in which the copolymer contains methacrylamide.
Claim 6
Dependent Claim
49 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 1 to 20 wt% ethylene, 0.5 to 15 wt% (based on vinyl acetate) crosslinkable comonomer which is an N-acrylamidoglycolic acid, and 0.1 to 5 wt% of an acrylamide.
Claim 7
Dependent Claim
49 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting essentially of vinyl acetate, 1 to 20 wt% ethylene, 0.5 to 15 wt% (based on vinyl acetate) crosslinkable comonomer which is an N-acrylamidoglycolic acid, and 0.1 to 5 wt% of an acrylamide.
Claim 8
Dependent Claim
14 words
The copolymer of Claim 5 which contains 0.5 to 1.5 wt% of an acrylamide.
Claim 9
Dependent Claim
16 words
The copolymer emulsion of Claim 6 in which the copolymer contains 16 to 18 wt% ethylene.
Claim 10
Dependent Claim
19 words
The copolymer emulsion of Claim 7 in which the copolymer contains 2 to 9 wt% of a N-acrylamidoglycolic acid.
Claim 11
Dependent Claim
73 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting of essentially of (a) vinyl acetate, (b) 1 to 20 wt% ethylene, (c) 0.5 to 15 wt%, based on vinyl acetate, crosslinkable comonomer of the formula: wherein R is a C 3 -C, o alkenoyl group, R' is methyl or ethyl and n is 3 or 4, and (d) 0.1 to 5 wt% of an acrylamide.
Claim 12
Dependent Claim
73 words
A copolymer emulsion for bonding nonwovens comprising an aqueous medium having colloidally dispersed therein a copolymer consisting of essentially of (a) vinyl acetate, (b) 1 to 20 wt% ethylene, (c) 0.5 to 15 wt%, based on vinyl acetate, crosslinkable comonomer of the formula: wherein R is a C 3 -C, o alkenoyl group, R' is methyl or ethyl and n is 3 or 4, and (d) 0.1 to 5 wt% of an acrylamide.
Claim 13
Dependent Claim
15 words
The copolymer emulsion of Claim 9 in which R is (meth)acrylyl and n is 3.
Claim 14
Dependent Claim
16 words
The copolymer emulsion of Claim 10 in which the copolymer contains 0.5 to 1.5 wt% acrylamide.
Claim 15
Dependent Claim
16 words
The copolymer emulsion of Claim 11 in which the copolymer contains 16 to 18 wt% ethylene.
Claim 16
Dependent Claim
17 words
The copolymer emulsion of Claim 12 in which the copolymer contains 2 to 9 wt% crosslinkable monomer.
Claim 17
Dependent Claim
39 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 18
Dependent Claim
39 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
39 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
39 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 21
Dependent Claim
39 words
A nonwoven product comprising a nonwoven web of fibers bonded 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 22
Dependent Claim
39 words
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 23
Dependent Claim
39 words
A nonwoven product comprising a nonwoven web of fibers bonded together with the vinyl acetate- ethylene copolymer deposited from the emulsion of Claim 12 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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