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US 4,959,412 AGranted
High shear tackifier resins
AssigneeArizona Chemical Company
InventorsWilliam J. Arter, Wayne K. Chu, Erwin R. Ruckel, Roland P. F. Scharrer
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Abstract
A method for the preparation of an adhesive with an improved high temperature shear strength is disclosed. The method comprises the steps of blending a styrene homopolymer with a tackifier resin to form a resin blend and combining the resin blend with an elastomer. An adhesive with improved high temperature shear strength is also disclosed.
Claims11
A method for the preparation of an adhesive with an improved high temperature shear strength comprising the steps of:
- blending from about 10 weight percent to about 25 weight percent of a styrene homopolymer with from about 90 weight percent to about 75 weight percent of a tackifier resin and forming a resin blend;
- and
- combining an effective amount of the resin blend with a block copolymer thermoplastic elastomer with at least one styrene domain and forming an adhesive.
An adhesive comprising:
- a block copolymer thermoplastic elastomer with at least one styrene domain;
- and
- a resin blend further comprising:
- from about 90 percent to about 75 weight percent of a tackifier resin;
- and
- from about 10 weight percent to about 25 weight percent of a styrene homopolymer whereby the adhesive has an improved high temperature shear strength.
3 more elements
Dependencies are inferred from the claim text.