Polyvinyl alcohol stabilized acetate ethylene copolymer dispersions as adhesives for creped webs
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United States of America
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Issued Date -
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app pub date -
Apr 21, 2017
filing date -
Apr 21, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A crepe process includes applying an adhesive composition to a nonwoven web, drying, and creping the nonwoven web on a creping drum. The improvement includes using an adhesive composition that includes an aqueous copolymer dispersion obtained by emulsion polymerization of a monomer mixture including 65 to 94.5% by weight of vinyl acetate, 5 to 30% by weight of ethylene, (meth)acrylamide, and 0.1 to 4% by weight of an N-methylol functional monomer. The N-methylol functional monomer constitutes from 25 to 85% by weight of the combined amounts of acrylamide and N-methylol functional monomer, which combined amounts constitute from 0.5 to 5% by weight of the monomer mixture. The emulsion polymerization is performed in the presence of 1 to 10% by weight of polyvinyl alcohol, based on the total weight of all monomers used for the polymerization. The adhesive composition does not include alkylphenol ethoxylates, phosphate ester surfactants, or sodium laureth sulfate.
First Claim
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Family
International Classification(s)
- C09J:ADHESIVES; ADHESIVE PROCESSES IN GENERAL
- C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
- D06C:FINISHING, DRESSING, TENTERING, OR STRETCHING TEXT....
- B31F:MECHANICAL WORKING OR DEFORMATION OF PAPER OR CARD....
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
- 2017 Application Filing Year
- C09J Class
- 1394 Applications Filed
- 852 Patents Issued To-Date
- 61.12 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C09J Class
- 0 % this patent is cited more than
- 4 Age
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