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.

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.

Abstract: A compound represented by the following formula: ##STR1## wherein R is a C.sub.3 -C.sub.24 olefinically unsaturated organic radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable,R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl radical, orR and R.sup.1 together with the nitrogen atom can form an olefinically unsaturated 5 to 7-member ring which has functionality that renders the nitrogen atom electron deficient and the olefinic unsaturation functionality is polymerizable,R.sup.2 and R.sup.3 are hydrogen, a C.sub.1 -C.sub.4 alkyl or acyl radical, orR.sup.2 and R.sup.3 together are a C.sub.2 -C.sub.4 alkylene group,R.sup.4 is hydrogen or a C.sub.1 -C.sub.4 alkyl, acyl, ester, amide or acid group, andn is an integer from 1 to 10, provided n is not 1 when R is (meth)acryloyl, R.sup.2 and R.sup.3 are methyl and R.sup.1 and R.sup.4 are hydrogen.Under acidic conditions the above compounds in which R.sup.

Abstract: In a process for preparing a nonwoven binder emulsion containing a crosslinkable vinyl acetate or vinyl acetate/ethylene copolymer prepared by polymerizing in an aqueous dispersion vinyl acetate or vinyl acetate and ethylene with a crosslinkable comonomer of formula IR--NH--(CH.sub.2).sub.n --CH(OR.sup.1).sub.2 (I)wherein R is a C.sub.3 -C.sub.10 olefinically unsaturated radical having functionality which renders the nitrogen atom electron deficient, the olefinic unsaturation functionality being polymerizable, R.sup.1 is hydrogen or a C.sub.1 -C.sub.4 alkyl group and n is 3 or 4, the method for improving the wet tensiles of such copolymer which comprises(1) polymerizing vinyl acetate in an aqueous dispersion reaction medium, optionally under an ethylene pressure,(2) commencing the addition of 0.