Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1990-09-06
1993-08-24
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
428359, 428364, 526319, C08F 1606
Patent
active
052389952
ABSTRACT:
Provided are high-performance polyvinyl alcohol fibers having excellent resistances to hot water and dry heat as well as excellent strength and elastic modulus. The fibers are produced from a highly syndiotactic polyvinyl alcohol containing units from vinyl pivalate in an appropriate amount, which renders it possible to draw the highly crystalline fiber in a high drawing ratio of at least 16.
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patent: 3470125 (1969-09-01), Sliwka
patent: 3644308 (1972-02-01), Carpentier
Database WPIL, accession No. 90-041642[06], Derwent Publications Ltd. London, GB & JP-A1 319 505 (Kuraray K.K.), Dec. 25, 1989.
Journal of Polymer Science, Polymer Chemistry Edition, vol. 26, No. 7, Jul. 1988, pp. 1961-1968, New York, US.
K. Imai, et al: "Poly(Vinyl Alcohol) Obtained Through Polymerization of Some Vinyl Esters".
Patent Abstracts of Japan, vol. 10, No. 292 (C-376) [2348], Oct. 3, 1986 & JP-A-61 108 713(Toray Ind. Inc.), May 27, 1986.
Akiyama Akitsugu
Fukunishi Yoshiharu
Ohmory Akio
Sano Hirofumi
Sato Toshiaki
Kuraray Company Limited
Reddick J. M.
Schofer Joseph L.
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