Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1990-07-23
1991-11-26
Thurlow, Jeffery
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
264564, 264569, 26433113, 26433118, 428 369, 428216, 428220, 428910, 524505, B29C 4720
Patent
active
050681389
ABSTRACT:
A composition is provided which is suitable for extrusion blowing to form an elastomeric film. The film produced from this composition has a very low modulus, high elongation and excellent elastic recovery. The composition includes: two hydrogenated block copolymers each including at least two blocks containing predominantly polymerized alkene arene monomer units and at least one block containing predominantly polymerized conjugated diene monomer units, the first hydrogenated block copolymer having a molecular weight between about 55,000 and about 200,000 and the second hydrogenated block copolymer having a molecular weight between about 15,000 and about 85,000, the ratio of the molecular weight of the first to the second being greater than 1.1:1, and each hydrogenated block copolymer being present in an amount of greater than 15 parts by weight for each 100 parts by weight of the total amount of the two hydrogenated block copolymers; between about 5 parts by weight and about 100 parts by weight of a polymer which is compatible with the polymerized vinyl arene blocks of the hydrogenated block copolymer; and between about 5 parts by weight and 200 parts by weight of a non-aromatic processing oil.
REFERENCES:
patent: 3576913 (1971-04-01), Johnson et al.
patent: 3629387 (1971-12-01), Watanabe et al.
patent: 3686365 (1972-08-01), Sequeira
patent: 3865776 (1975-02-01), Gergen
patent: 3947536 (1976-03-01), Horiie et al.
patent: 4006116 (1977-02-01), Dominguez
patent: 4017436 (1977-04-01), Tabana et al.
patent: 4070418 (1978-01-01), Harpell
patent: 4082877 (1978-04-01), Shadle
patent: 4386188 (1983-05-01), Grancio et al.
patent: 4701367 (1987-10-01), Malhotra
patent: 4769415 (1988-09-01), Hotta et al.
Shell Chemical Sales Bulletin dated Mar. 7, 1988.
Djiauw Lie K.
Mitchell Neil F.
Shell Oil Company
Thurlow Jeffery
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