PRESSURE SENSITIVE ADHESIVES BASED ON CARBOXYLIC ACIDS AND EPOXIDES
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
Dec 5, 2012
filing date -
Dec 7, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A method for making a pressure sensitive adhesive comprising:
- (a) reacting (i) at least one dibasic acid or anhydride thereof with (ii) at least one epoxide having at least two epoxy groups, one diol or polyol, or one diamine at a stoichiometric molar excess of reactive carboxylic acid groups relative reactive epoxy groups, hydroxyl groups or amine groups to produce a thermoplastic prepolymer or oligomer capped with a carboxylic acid group at both prepolymer or oligomer chain ends, or a thermoplastic branched prepolymer or oligomer with at least two of the prepolymer or oligomer branches and chain ends capped with a carboxylic acid group; and(b) curing the resulting carboxylic acid-capped prepolymer or oligomer with at least one polyfunctional epoxy to produce a pressure sensitive adhesive, wherein the polyfunctional epoxy is not an epoxidized vegetable oil.
Loading the Abstract Image...
OK
First Claim
Family
Loading Family data...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully