EP0593231A1
Expired / Lapsed
EP
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Method of improving pressure-sensitive adhesives
Assignee: Rohm and Haas Co
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Filing: 1993-10-08
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Granted: —
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Expires: 2013-10-08
Abstract
Abstract A method of improving the performance of pressure-sensitive adhesives at temperatures below -17.7° (0°F) is disclosed. An ethylene oxide/propylene oxide block copolymer is added to the adhesive and produces improved peel strength performance.
Inventors
- 👤 Allen Carleton Arnwine Jr.
- 👤 William David Sheasley
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 17:43
CPC Classifications
C; C09; C09J; C09J171/00; C09J171/02; C09J11/00; C09J11/08; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/14; C08L71/00; C08L71/02; C09J2301/00; C09J2301/30; C09J2301/302
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
47 words
A method of improving the performance of a pressure sensitive adhesive at temperatures below -17.8°C (0°F) comprising mixing such as formulating the adhesive polymer with an amount of from about 0.5 to about 20 weight percent of a ethyleneoxide/ propyleneoxide block copolymer surfactant based on total composition.
Claim 2
Dependent Claim
28 words
The method of Claim 1 in which the amount of ethyleneoxide/ propyleneoxide block copolymer surfactant is in an amount of from about 1 to about 16 weight percent.
Claim 3
Independent Claim
29 words
The method of any preceding Claim wherein the adhesive polymer contains up to 98% ethylhexyl acrylate and up to 99% acrylic or methacrylic esters of C₄ to C₁₂ alkanols.
Claim 4
Independent Claim
22 words
The method of any preceding Claim wherein the adhesive polymer contains from 40 to about 99% of 2-ethylhexyl acrylate or butyl acrylate.
Claim 5
Independent Claim
24 words
The method of any preceding Claim wherein the ethylene oxide/propylene oxide block copolymer has a molecular weight of from about 1,000 to about 7,000.
Claim 6
Independent Claim
24 words
The method of any preceding Claim wherein the ethylene oxide/propylene oxide block copolymer has a molecular weight of from about 1500 to about 4,000.
References Cited (Backward Citations)
WO1991018739A1
Cited
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