Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1996-08-19
1998-12-15
Sergent, Rabon
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
25218221, 25218222, 528 48, 528 49, 528 70, 528 73, 528 75, 528 76, 528 80, 528 83, 544193, 544222, 560115, 560125, 560155, 560157, 560158, 560169, 560331, 560355, 564123, 564134, 564135, 564136, C08G 1880, C08G 1842, C08G 1840, C07C26502
Patent
active
058498559
ABSTRACT:
Disclosed is a blocked polyisocyanate composition comprising: a blocked polyisocyanate obtained by blocking the terminal isocyanate groups of a two or more terminal isocyanate groups-containing polyisocyanate derived from at least one diisocyanate selected from an aliphatic diisocyanate and an alicyclic diisocyanate with a blocking agent comprising at least one active methylene compound selected from a malonic diester and an acetoacetic ester; and a salt of a basic compound with an acidic compound, or a mixture of the salt with the basic compound or the acidic compound, the composition having a pH value of from 1 to 8.5. The blocked polyisocyanate composition of the present invention not only exhibits high stability even under high temperature conditions, but also is capable of maintaining such high stability for a prolonged period of time. The blocked polyisocyanate composition can be combined with a polyol to provide a one-pack thermocuring resin composition which exhibits not only excellent storage stability but also excellent curability even under low temperature conditions, which therefore can be advantageously used as various coating materials, adhesives, sealing agents and the like.
REFERENCES:
patent: 4007215 (1977-02-01), Hartmann et al.
patent: 4087392 (1978-05-01), Hartmann et al.
patent: 4101530 (1978-07-01), Burkhardt et al.
patent: 4132843 (1979-01-01), Dalibor
patent: 4302351 (1981-11-01), Gras et al.
patent: 4332965 (1982-06-01), Dalibor
patent: 4345057 (1982-08-01), Yamabe et al.
patent: 4439593 (1984-03-01), Kelso et al.
patent: 4518522 (1985-05-01), Markusch et al.
patent: 4582888 (1986-04-01), Kase et al.
patent: 4606947 (1986-08-01), Heinrich et al.
patent: 4640966 (1987-02-01), Mitani et al.
patent: 4677180 (1987-06-01), Schmitt et al.
patent: 4690968 (1987-09-01), Mitani et al.
patent: 5071937 (1991-12-01), Potter et al.
patent: 5126424 (1992-06-01), Brindopke et al.
patent: 5154950 (1992-10-01), Rosthauser et al.
patent: 5239028 (1993-08-01), Nakagawa et al.
patent: 5466860 (1995-11-01), Flosbach et al.
patent: 5621063 (1997-04-01), Wolf et al.
patent: 5705593 (1998-01-01), Schmalstieg et al.
Asahina Yoshiyuki
Usui Taketoshi
Asahi Kasei Kogyo Kabushiki Kaisha
Sergent Rabon
LandOfFree
Blocked polyisocyanate composition and one-pack thermocuring res does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blocked polyisocyanate composition and one-pack thermocuring res, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blocked polyisocyanate composition and one-pack thermocuring res will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1458951