Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-11-17
1996-12-03
Jagannathan, Vasu S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525207, C08L 2512, C08L 3500
Patent
active
055809286
ABSTRACT:
A resin composition is disclosed which comprises:
(a) from 1 to 99% by weight of a maleimide-olefin copolymer comprising from 40 to 60 mol % of structural unit (I) shown below and from 60 to 40 mol % of structural unit (II) shown below and having a number-average molecular weight of from 1.times.10.sup.3 to 5.times.10.sup.6 : ##STR1## wherein R.sup.1 is hydrogen or an alkyl having 1 to 6 carbon atoms, ##STR2## wherein R.sup.2 and R.sup.3 each is hydrogen or an alkyl having 1 to 6 carbon atoms; and
(b) from 99 to 1% by weight of an acrylonitrile-styrene copolymer containing from 21 to 45% by weight of an acrylonitrile units. The composition is excellent in optical properties including transparency and low birefringence and in heat resistance and mechanical properties.
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Flory, P. J., "Principles of Polymer Chemistry," Cornell Univ. Pr., Ithaca, pp. 310, 312 1953.
"Chain Orientation and Intrinsic Anisotropy in Birefringence-free Polymer Blends", Hiromu Saito et al, Journal of Polymer Science: Part B: Polymer Physics, vol. 25, pp. 1629-1636 (1987).
"Compensation method for zero birefringence in oriented polyers", Berned R. Hahn et al, Polymer, 1985, vol. 26, Oct., pp. 1619-1622
Doi Toru
Inoue Hiroshi
Jagannathan Vasu S.
Tosoh Corporation
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