Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Adhesive outermost layer
Patent
1993-03-22
1994-06-21
Hoke, Veronica P.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Adhesive outermost layer
428511, 524 87, 524120, 524147, C08K 53437
Patent
active
053227344
ABSTRACT:
An oxidatively stabilized adhesion promoter composition for hot-melt adhesives is disclosed. The oxidatively stabilized adhesion promoter composition comprises a poly(vinylmethylether), said poly(vinylmethylether) having a number average molecular weight of from about 5,000 to about 1000,000, and an oxidative stabilizer antioxidant consisting of polymerized 1,2-dihydro-2,2,4-trimethylquinoline having a number average molecular weight of from about 350 to about 750. The said polymerized 1,2-dihydro-2,2,4-trimethylquinoline can be used with a secondary antioxidant comprising an organic compound of sulfur and trivalent phosphorus. The trivalent phosphorus compound can be a phosphite selected from the group consisting of tris-(2,4-di-tert-butylphenyl) phosphite, tris(mono-nonylphenyl) phosphite, bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite, distearyl pentaerythritol phosphite, and mixtures thereof. The oxidative stabilizer antioxidant is present in the poly(vinylmethylether) in an amount from about 0.01 weight percent to about 2.0 weight percent. The oxidatively stabilized adhesion promoter composition can contain up to about 1000 parts per million of hydroperoxides measured at room temperature and has a carbonyl index of less than about 2.9 as measured by infrared spectroscopy after exposure to a high temperature for a prolonged period.
REFERENCES:
patent: 2697084 (1954-12-01), Eger
patent: 2970974 (1961-02-01), Albus et al.
patent: 2985617 (1961-05-01), Salyer et al.
patent: 3620824 (1971-11-01), Slade et al.
patent: 5080978 (1992-01-01), Kulzick et al.
Auxiliary Substances for Polymeric Materials-K. B. Piotrovskii et al (1966) pp. 19 and 20.
F. Mitterhofer-Polymer Engineering and Science, mid Jul., 1980, vol. 20, No. 10.
Amoco Corporation
Hoke Veronica P.
Oliver Wallace L.
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