Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1986-06-06
1988-06-07
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523428, 525340, 525379, 528 93, C08L 6300
Patent
active
047497289
ABSTRACT:
A new transesterification catalyst comprises an epoxide and a non-acidic nucleophilic onium salt.
Coating compositions having hydroxyl functional resin components and carboxylic ester components adapted for curing by transesterification following application to a substrate are formulated with in-situ formed cure catalyst comprising a non-acidic nucleophile and an epoxide-to-product coatings that readily cure by transesterification. Such coatings including polyesters, polyepoxides, and polyacrylates are useful in formulating high solids coatings and powder coatings having exceptional physical properties.
Extremely low-temperature cure coatings were obtained by transesterifying mixtures of polyols and polymeric esters having multiple activated ester linkages having the structure ##STR1## wherein R' is lower alkyl and Y is --OH and O-alkyl radicals. These coatings provide low-temperature cure coatings for paper, plastic, and wood in addition to metal substrates.
REFERENCES:
patent: 4069055 (1978-01-01), Crivello
patent: 4276406 (1981-06-01), Monnerat et al.
patent: 4401774 (1983-08-01), Kooymans et al.
patent: 4405662 (1983-09-01), Raudenbusch et al.
patent: 4423167 (1983-12-01), Valko
patent: 4423168 (1983-12-01), Valko
patent: 4423169 (1983-12-01), Valko
patent: 4489182 (1984-12-01), Valko
patent: 4511447 (1985-04-01), Valko
Abbey Kirk J.
Craun Gary P.
Lipman Bernard
Schmitz Thomas M.
Schofer Joseph L.
The Glidden Company
LandOfFree
Epoxy/nucleophile transesterification catalysts and thermoset co 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/nucleophile transesterification catalysts and thermoset co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Epoxy/nucleophile transesterification catalysts and thermoset co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-845136