Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent
1990-12-06
1992-02-18
Marquis, Melvyn I.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
21433111, B29C 3902
Patent
active
050892096
ABSTRACT:
Articles are blow-molded from a polyphenylene sulfide resin having a melt flow in a range of from about 1 to about 10 g/10 min., and preferably in a range of from about 4 to about 8 g/10 min. When filler materials such as mica are added, the upper end of the acceptable melt flow range is raised to about 15 g/10 min. By maintaining mold temperatures in a range of from about 250.degree. to about 400.degree. F., and preferably from about 275.degree. to about 325.degree. F., the polyphenylene sulfide material in the blow-molded article is provided with a semi-crystalline structure, and is dimensionally stable at temperatures of at least 500.degree. F. Filler materials are preferably provided in a range of from about 10 to about 20 weight percent.
REFERENCES:
patent: 3354129 (1967-11-01), Edmonds, Jr. et al.
patent: 3711438 (1973-01-01), Susuki et al.
patent: 3919177 (1975-11-01), Campbell
patent: 4038261 (1977-07-01), Crouch et al.
patent: 4261473 (1981-04-01), Yamada et al.
patent: 4405767 (1983-09-01), Beever et al.
patent: 4490522 (1984-12-01), Kawabata et al.
patent: 4503168 (1985-03-01), Hartsing, Jr.
patent: 4510297 (1985-04-01), Moberly
patent: 4652602 (1987-03-01), Liu
patent: 4734470 (1988-03-01), Kawabata et al.
patent: 4801416 (1989-01-01), Kobayashi et al.
patent: 4820759 (1989-04-01), Ichikawa et al.
patent: 4826906 (1989-05-01), Satake et al.
patent: 4863669 (1989-09-01), Kouyama et al.
Database WPIL, AN=86-002996 Derwent Publications Ltd., London, GB & JP-A-60228235 (Kuraray KK).
Bailey Fay W.
Ryan, Jr. Charles L.
Lee Helen F.
Marquis Melvyn I.
Phillips Petroleum Company
LandOfFree
Method of extrusion blow-molding polyphenylene sulfide articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of extrusion blow-molding polyphenylene sulfide articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of extrusion blow-molding polyphenylene sulfide articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1821443