Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1992-12-29
1994-11-01
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523429, 523457, 523466, 523468, 525423, 525523, 525524, C08G 5950, C08L 6300, C08L 7710, C08K 320, C08K 334, C08K 336, C08K 340
Patent
active
053608402
ABSTRACT:
Epoxy resin compositions having improved storage stability before curing and improved thermal and mechanical performance after curing comprise a mixture of a polyepoxide and a curing agent that is reactive with the polyepoxide. The epoxy resin composition is characterized by a glass transition temperature of less than 20.degree. C., measured under standard conditions, after subjecting the epoxy resin composition to a specified thermal cycle. The preferred curing agents are aromatic diamines, for example, 3,7-diaminodibenzothiophene-5,5-dioxide; 3,7-diaminophenothiazine sulfone, 3,7-diamino-N-methylphenothiazine sulfone; 2,7-diamino-9-fluorenone and 2,4,6,8-tetramethyl-3,7-diaminothioxanthene sulfone.
REFERENCES:
patent: 2684372 (1954-07-01), Amstutz
patent: 3676200 (1972-07-01), Rembold et al.
patent: 4330659 (1982-05-01), King et al.
patent: 4500582 (1985-02-01), King et al.
patent: 4656207 (1987-04-01), Jabloner et al.
patent: 4656208 (1987-04-01), Chu et al.
patent: 4684678 (1987-08-01), Schultz
patent: 4855386 (1989-08-01), Bauer
patent: 4861810 (1989-08-01), Dewhirst
patent: 4863787 (1989-09-01), Gawin
patent: 4866133 (1989-09-01), Andrews et al.
patent: 4933392 (1990-06-01), Andrews et al.
patent: 4940740 (1990-07-01), Folda et al.
patent: 4990587 (1991-02-01), Shaw et al.
patent: 5025045 (1991-06-01), Gawin et al.
patent: 5068268 (1991-11-01), Dewhirst
patent: 5084525 (1992-01-01), Akutagawa
patent: 5218062 (1993-06-01), Earls
patent: 5244719 (1993-09-01), Qureshi
Chan Anita N.
Swetlin Brian J.
Thompson, III Samuel A.
Willis Chester R.
Woodside Andrew B.
Bleutge John C.
Hercules Incorporated
Patterson Joanne W.
Wilson D. R.
LandOfFree
Epoxy resin compositions with improved storage stability does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Epoxy resin compositions with improved storage stability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Epoxy resin compositions with improved storage stability will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1803007