Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From silicon reactant having at least one...
Patent
1995-07-31
1997-07-22
Dean, Ralph H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From silicon reactant having at least one...
528 27, 525209, 525208, 525207, 526273, 526271, 526279, 524806, 524808, C08G 7704
Patent
active
056504756
ABSTRACT:
The present invention relates to a low solvent content type-coating composition which provides the resultant coating with improved surface appearance, acid resistance, alkali resistance, weathering resistance, scuff resistance and solvent resistance, while the content of an organic solvent of the coating composition can be much reduced to 0 to 30% at 25.degree. C. The low solvent content type-coating composition comprises a vinyl oligomer having a blocked carboxyl group and an additional group selected from an epoxy group, a silanol group, a hydrolyzable silyl group and an acid anhydride group. The vinyl oligomer has a number average molecular weight (Mn) of 600 to 2000, a weight average molecular weight (Mw) of 600 to 5000, and a ratio of a weight average molecular weight/a number average molecular weight (Mw/Mn) of 1.0 to 2.5. The blocked carboxyl group and an additional group may be present in the same or different vinyl oligomers.
REFERENCES:
patent: 5281636 (1994-01-01), Nambu et al.
patent: 5359005 (1994-10-01), Kania et al.
Iwamura Goro
Koga Kazuhi
Marutani Yoshiaki
Nakahama Tadamitsu
Ohsawa Mika
Dean Ralph H.
Mazda Motor Corporation
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