Creping adhesive composition
AssigneesSolenis Technologies, L.P., Solenis (Shanghai) Chemicals Co., Ltd.
InventorsYanru Fan, Nicolas Ince
Life of this patent
Estimating the term…
Abstract
A creping adhesive composition includes an adhesive polymer chosen from a polyacrylamide, a specific polyamine, and combinations thereof that is present in an amount of from about 1 to about 45 wt % actives, based on a total weight of the composition; a film modifier including a polyvinylamine that is present in an amount of from about 0.1 to about 40 wt % actives, based on a total weight of the composition; and a plasticizer including a compound having two or more —OH groups that is present in an amount of from about 0.1 to about 40 wt % actives, based on a total weight of the composition; wherein the composition is free of polyamidoamine-epihalohydrin (PAE) and polyethyleneimine (PEI).
Claims20
A creping adhesive composition comprising:
- an adhesive polymer chosen from a polyacrylamide, a polyamine, and combinations thereof that is present in an amount of from about 1 to about 45 wt % actives, based on a total weight of the composition;
- a film modifier comprising a polyvinylamine that is different from the polyamine and is present in an amount of from about 0.1 to about 40 wt % actives, based on a total weight of the composition;
- and
- a plasticizer comprising a compound having two or more —OH groups that is present in an amount of from about 0.1 to about 40 wt % actives, based on a total weight of the composition;
- wherein the polyamine is the reaction product of:
- a. epichlorohydrin
- b. dimethylamine
- c. ethylenediamine;
- and
- wherein the composition is free of polyamidoamine-epihalohydrin (PAE) and polyethyleneimine (PEI).
A method of forming a creping adhesive composition, said method comprising the steps of:
- a) providing an adhesive polymer chosen from a polyacrylamide, a polyamine, and combinations thereof,
- b) providing a film modifier comprising a polyvinylamine,
- c) providing a plasticizer comprising a compound having two or more —OH groups,
- d) combining the adhesive polymer, the film modifier and the plasticizer to form the creping adhesive composition such that the adhesive polymer is present in an amount of from about 1 to about 45 wt % actives, the film modifier is present in an amount of from about 0.1 to about 40 wt % actives, and the plasticizes is present in an amount of from about 0.1 to about 40 wt % actives, each based on a total weight of the composition;
- wherein the polyamine is the reaction product of:
- a. epichlorohydrin
- b. dimethylamine
- c. ethylenediamine;
- and
- wherein the composition is free of polyamidoamine-epihalohydrin (PAE) and polyethyleneimine (PEI).
A method for creping a fibrous web, said method comprising the steps of:
- a) providing a creping dryer comprising a creping cylinder that has a surface;
- b) providing a fibrous web;
- c) providing a creping adhesive composition comprising:
- an adhesive polymer chosen from a polyacrylamide, a polyamine, and combinations thereof and present in an amount of from about 1 to about 45 wt % actives, based on a total weight of the composition,
- a film modifier comprising a polyvinylamine and present in an amount of from about 0.1 to about 40 wt % actives, based on a total weight of the composition, and
- a plasticizer comprising a compound having two or more —OH groups and present in an amount of from about 0.1 to about 40 wt % actives, based on a total weight of the composition;
- wherein the polyamine is the reaction product of:
- a. epichlorohydrin
- b. dimethylamine
- c. ethylenediamine;
- and
- wherein the composition is free of polyamidoamine-epihalohydrin (PAE) and polyethyleneimine (PEI);
- d) applying the creping adhesive composition to the surface of the creping cylinder;
- e) contacting the fibrous web and the surface of the creping cylinder;
- and
- f) removing the fibrous web from the surface of the creping cylinder with a doctor blade to crepe the fibrous web.
Dependencies are inferred from the claim text.