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Ternary adhesive compositions
| Details |
Inventors: McElrath, Kenneth O.; Robertson, Martha L.; Chow, Wai Y.;
Assignee: Exxon Chemical Patents Inc. (Linden, NJ)
Primary Examiner: Bleutge; John C.
Assistant Examiner: Buttner; David
Attorney, Agent or Firm: Hunt; J. F., Kurtzman; M. B.
An adhesive composition which contains a thermoplastic elastomer which includes ethylene propylene rubber, ethylene propylene diene monomer, polyisobutylene butyl rubber, ethylene vinyl acetate graft copolymers thereof with C.sub.3 to C.sub.10 unsaturated mono- and polycarboxylic acids, a tackifying resin and a di- or polyamine cross-linking agent having 2-10 carbon atoms, which is useful as a hot melt or pressure sensitive adhesive having enhanced higher temperature properties. |
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DETAILED DESCRIPTION We claim: 1.
An adhesive composition having enhanced strength and high temperature resistance, comprising: (a) a thermoplastic elastomer having grafted thereto a C.
sub.
3 to C.
sub.
10 unsaturated mono- or polycarboxylic acid, anhydride and derivatives thereof.
(b) A tackifying resin selected from petroleum hydrocarbon resins, polyterpene resins, and cyclopentadiene resins; and (c) a cross-linking agent selected from di- or polyamine hydrocarbyl compounds having from 2 to about 20 carbon atoms.
2.
The composition of claim 1 wherein said cross-linking agent is selected from ethylene, propylene, benzene, toluene and tallow-based di- and polyamine hydrocarbyl compounds.
3.
The composition of claim 1 wherein said cross-linking agent is selected from diethylene triamine, triethylene tetramine, tetraethylene pentamine, ethylene diamine, and diethyl toluene diamine.
4.
The composition of claim 1 wherein said cross-linking agent is ethylene diamine.
5.
The composition of claim 1 wherein said thermoplastic elastomer is selected from ethylene propylene rubber, ethylene propylene diene monomer rubber, polyisobutylene, butyl rubber, ethylene vinyl acetate, ethylene (meth) acrylic acid copolymer.
6.
The composition of claim 1 wherein said cross-linking agent is present in said composition from about 0.
01 to about 15.
0% by weight of said thermoplastic elastomer.
7.
The composition of claim 6 wherein said cross-linking agent is present from about 0.
05 to about 2% by weight of said thermoplastic elastomer.
8.
The composition of claim 1 wherein said tackifying resin is a cyclopentadiene resin.
9.
The composition of claim 1 wherein said thermoplastic elastomer is a graft copolymer of ethylene propylene rubber with a C.
sub.
3 to C.
sub.
10 unsaturated mono- or polycarboxylic acid anhydride or derivative.
10.
The composition of claim 9 wherein said graft copolymer is a graft copolymer having an unsaturated mono- or polycarboxylic acid selected from maleic acid, fumaric acid, acrylic acid, hydroxy-C
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Adhesives and Rubbers 
