SILANE END CAPPED SUBSTITUTED UREA RESINS AND COATINGS THEREOF
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United States of America Patent
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Issued Date -
Aug 11, 2016
app pub date -
Apr 21, 2016
filing date -
Mar 4, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and coating made thereby of: reacting a 3-trialkoxysilylpropyl amine with an organic compound having a carbon-carbon double bond activated by an electron withdrawing group; followed by reacting with an aliphatic polyisocyanate; followed by optionally performing a silicate condensation with a hydrolyzed silicate; followed by application to a surface and moisture curing to form oxygen crosslinks between silicon atoms and loss of alkyl alcohols to form the coating. The compounds before moisture curing are shown below. R1 is an alkyl group; R3 and R4 are organic groups; R5 is the residue of the polyisocyanate; R6 contains the electron withdrawing group; R7 is an alkyl group; R1′ is R1 or —(SiR72—O)m—R7; at least one of the R1′ groups is —(SiR72—O)m—R7; m is a positive integer; and n is an integer greater than or equal to 2.
First Claim
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