Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1986-04-11
1987-11-17
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
525102, C08F 832
Patent
active
047075155
ABSTRACT:
The specification is concerned with sealant compositions comprising prepolymers which are capable of being cured by atmospheric moisture. The compositions provide a desirable blend of properties with regard to application and use, using prepolymers derived from comparatively inexpensive raw materials. The prepolymers correspond to a reaction product of an at least substantially linear acrylate ester polymer having a Tg of not greater than 10.degree. C. with a hydrolysable silane having a saturated organo-functional group, the reaction product being a fluid material soluble in organic solvents and curable by exposure to atmospheric moisture to a resilient solid. The prepolymer is a silane-modified polymer which preferably has from 2 to 3 hydrolysable silane groups per molecule of prepolymer and from 1 to 3 hydrolysable groups per silane group. Preferred acrylate ester polymers are homo- or co-polymers of butyl acrylate; copolymers may contain other acrylate monomers and or may contain up to 50 wt % vinyl monomer e.g. styrene. Preferred silanes are amino-silanes particularly those having 2 or 3 hydrolysable alkoxy groups. Also described and claimed are methods of making the prepolymers. The compositions are suited for construction and glazing sealants.
REFERENCES:
patent: 3925286 (1975-12-01), Fahey
patent: 3955036 (1976-05-01), Plueddmann
patent: 4284548 (1981-08-01), Kaufman et al.
patent: 4291136 (1981-09-01), Keogh
patent: 4319007 (1982-03-01), Khattab
patent: 4369232 (1983-01-01), Scopazzi
patent: 4468492 (1984-08-01), Piccirilli et al.
patent: 4559387 (1985-12-01), Endo et al.
Gilch Heinz G.
Haar Wolfgang
Lipman Bernard
Schofer Joseph L.
Szatkowski Thomas S.
USM Corporation
LandOfFree
Moisture-curable sealant compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moisture-curable sealant compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moisture-curable sealant compositions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1450577