Process of making a sintered polybenzimidazole article

Details Process of making a sintered polybenzimidazole article Process of making a sintered polybenzimidazole article

1988-07-25

1989-08-29

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Autogenously or by activation of dry coated particles

264235, 264237, 26433112, 26433119, 26433121, B29C 6704, C08G 6926

Patent

active

048615374

ABSTRACT:
Sintered polybenzimidazole articles are obtained by compacting a particulate, dried polybenzimidazole resin under a pressure of 2,000 to 10,000 psi in a mold, heating the formed article to a temperature in the range of 825.degree. to 950.degree. F. for at least four hours, cooling the polybenzimidazole article to below 800.degree. F. while maintaining the article under a pressure of 2,000 to 10,000 psi, and thereafter heating the constrained formed polybenzimidazole article to a temperature in the range of 825.degree. to 950.degree. F. for at least one hour.

REFERENCES:
patent: 3340325 (1967-09-01), Suffredini
patent: 3386969 (1968-06-01), Levine
patent: 3387058 (1968-06-01), Levine
patent: 3518234 (1970-06-01), Hara et al.
patent: 4238538 (1980-12-01), Manwiller
patent: 4302413 (1981-11-01), Howe et al.
patent: 4436682 (1984-03-01), Knopp
patent: 4448687 (1984-05-01), Wang
patent: 4512894 (1985-04-01), Wang
patent: 4717619 (1988-01-01), Letinski
Harb, M. E. et al., "Cure Cycle Optimization of Compression Molded High Molecular Weight Celazole PBI Resin", 32nd International Sampe Symposium (1987), pp. 795-806.
Jones, J. F. et al., "Polybenzimidazole Composites", International Conference on Composite Materials IV, Aime, Warrendale, Pa. (1985), pp. 1591-1599.
Ward, B. C., "Use of Polybenzimidazoles in Compression Molding", Fabricating Composites '86 Conference, Baltimore, Md. (1986), pp. EM 86-704-1-12.
Ward, B. C., "Effects of Molecular Weight and Cure Cycle on the Properties of Compression Molded Celazole PBI Resin", 32nd International Sampe Symposium (1987), pp. 853-867.

Affiliated with

Also associated with

Rating

Process of making a sintered polybenzimidazole article does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of making a sintered polybenzimidazole article, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of making a sintered polybenzimidazole article will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2236661