Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-08-30
1991-08-13
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525451, 526216, 5262305, 5262323, 528 49, 528 76, 528 85, 528272, 528301, 528370, 528372, 528263, 528264, 528265, 560158, 560198, 560202, C08L 7500
Patent
active
050397540
ABSTRACT:
A polymeric peroxide comprising a dilvalent recurring unit having the formula: ##STR1## wherein the recurring unit of Formula I has a 10 hour half-life temperature of at least 80.degree. C. and optionally a divalent recurring unit having the formula: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.5, X, X.sup.1, Y, Z, y and z are as defined in the Detailed Description of the Preferred Embodiments and the polymeric peroxide has a molecular weight of 1,000 to 200,000. The polymeric peroxides are derived from hydroxy-hydroperoxides of dihydroxy dialkyl peroxides. These polymeric peroxides can be used for preparing block copolymers and compatibilizing polymer blends and alloys.
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B. Hazer, "Polymerization of Vinyl Monomers by New Oligoperoxide: Oligo(Adipoyl-5-Peroxy-2,5-Dimethyl n-Hexyl Peroxide)", Journal of Polymer Science: Part A: Polymer Chemistry, vol. 25, pp. 3349-3354 (1987).
Atochem North America, Inc.
Welsh Maurice J.
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