Radiation curable urethane compositions

• US 4,192,762 A
• Filed: 04/20/1978
• Issued: 03/11/1980
• Est. Priority Date: 04/20/1978
• Status: Expired due to Term

• Current Assignee: Union Carbide Corporation (Dow, Inc.)
• Original Assignee: Union Carbide Corporation (Dow, Inc.)
• Inventors: Osborn, Claiborn L.
• Primary Examiner(s): Padgett, Benjamin R.
• Assistant Examiner(s): Gluck, Irwin
• Application Number:
  US05/898,102
• Time in Patent Office: 691 Days
• Field of Search: 252/182, 204/159.15, 204/159.16, 204/159.19, 204/159.22, 260/859 R, 526/301, 427/54
• US Class Current: 252/182.18
• CPC Class Codes: C08F 220/34 Esters containing nitrogen , e.g. N,N-dimethylaminoethyl (meth)acrylate
• CPC Class Codes: C08F 222/1006 of polyhydric alcohols or polyhydric phenols
• CPC Class Codes: C08F 299/06 from polyurethanes
• CPC Class Codes: C08G 18/283 Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
• CPC Class Codes: C08G 18/672 Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
• CPC Class Codes: C09D 4/00 Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16

Abstract

Radiation curable urethane compositions obtained by the reaction of an organic polyisocyanate, an hydroxyalkyl acrylyl compound and an hydroxyl compound. The compositions are useful in coatings, inks, adhesives and textile applications.

Claims

1. A radiation curable urethane composition comprising the reaction product of (I) an organic polyisocyanate, (II) an hydroxyalkyl acrylate of the formula ##STR3## wherein Z is hydrogen or methyl and K is a divalent alkylene group of from 2 to 5 carbon atoms and (III) an hydroxyl compound of the formula:

space="preserve" listing-type="equation">R(OC.sub.n H.sub.2n).sub.m OH

wherein R is a member of the group of alkyl having from 1 to 25 carbon atoms, alkaryl or aralkyl having from 7 to carbon atoms, aryl having from 6 to 10 carbon atoms, or cycloalkyl having from 5 to 10 ring carbon atoms;

n is an integer having a value of from 2 to 4; and

m is an integer having a value of from 1 to 70; and

wherein the mole percent of (II);

(III) is from 50 to 98;

50 to 2.

2. A radiation curable urethane composition as claimed in claim 1, wherein the mole percent of (II):

(III) is from 60 to 75;

40 to 25.

3. A radiation curable urethane composition as claimed in claim 1, wherein component (I) is a diisocyanate.

4. A radiation curable urethane composition as claimed in claim 1, wherein component (I) is tolylene diisocyanate, component (II) is 2-hydroxyethyl acrylate and component (III) is an adduct of an alkylphenol with from 3 to 100 moles of ethylene oxide.

5. A radiation curable urethane composition as claimed in claim 1, wherein component (I) is tolylene diisocyanate, component (II) is 2-hydroxyethyl acrylate and component (III) is an adduct of a mixture of C₁₁ to C₁₅ linear alcohols with from 3 to 100 moles of ethylene oxide.