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US 8,287,687 B1Granted
Cyanoacrylate compositions incorporating organic micropulp
AssigneeHenkel Corporation
InventorsGregory T. Schueneman, Shabbir Attarwala, Karen R. Brantl
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Abstract
The present disclosure provides a cyanoacrylate-based composition comprising a cyanoacrylate component and an organic micropulp component dispersed in a curable (meth)acrylic monomer matrix. The composition is particularly useful as an adhesive composition for zero gap applications.
Claims11
A cyanoacrylate composition consisting essentially of:
- (a) a cyanoacrylate component;
- and
- (b) an organic micropulp component dispersed in a curable (meth)acrylate matrix,
- wherein the organic micropulp component/curable (meth)acrylate matrix dispersion is present in an amount in the range of about 2% by weight to about 10% by weight;
- wherein the organic micropulp component comprises fibrous organic material having a volume average length ranging from 0.01 micrometers to 100 micrometers and an average surface area ranging from 25 to 500 square meters per gram;
- wherein the organic micropulp component is made from poly-paraphenylene terephthalamide;
- and
- wherein the (meth)acrylate in which the organic micropulp component is dispersed is polyethyleneglycol di(meth)acrylate.
5 more elements
A method of bonding two or more substrates in a zero gap application, said method comprising the steps of:
- providing at least two substrates;
- dispensing on a surface of one or both of the at least two substrates a cyanoacrylate adhesive composition comprising:
- (a) a cyanoacrylate component;
- and
- (b) an organic micropulp component dispersed in a curable (meth)acrylate matrix;
- contacting the surfaces of the at least two substrates having the cyanoacrylate adhesive composition thereon;
- and
- exposing the cyanoacrylate adhesive composition to cure conditions;
- wherein the cured cyanoacrylate demonstrates an improved peel strength when compared to a similar cyanoacrylate adhesive composition without the organic micropulp component included therein;
- wherein the organic micropulp component/curable (meth)acrylate matrix dispersion is present in an amount in the range of about 2% by weight to about 10% by weight;
- wherein the organic micropulp component comprises fibrous organic material having a volume average length ranging from 0.01 micrometers to 100 micrometers and an average surface area ranging from 25 to 500 square meters per gram;
- wherein the organic micropulp component is made from poly-paraphenylene terephthalamide;
- and
- wherein the (meth)acrylate in which the organic micropulp component is dispersed is polyethyleneglycol di(meth)acrylate.
11 more elements
Dependencies are inferred from the claim text.