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US3924044A Expired / Lapsed US ⏱️ 0.0 years remaining

Sheet material coated with adhesives from cycloaliphatic and phenylalkyl acrylates and vinyl esters

Assignee: 3M Co
•
Filing: 1974-12-20
•
Granted: 1975-12-02
•
Expires: 1994-12-20
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Abstract

Abstract Carbocyclic alkyl acrylates and vinyl esters of the general formula: where A is acryloxy (CH2 CHCOO-), methacryloxy (CH2 C(CH3)COO-), or carbovinyloxy (CH2 CHOCO-), R1 is a cycloaliphatic or aromatic group, R2 is a hydrogen atom or lower alkyl, and R3 is an alkylene having at least five carbon atoms, ARE PREPARED, FOR EXAMPLE, BY ALCOHOLYSIS OF LOWER ALKYL ACRYLATES WITH CYCLOALIPHATIC- OR AROMATIC-SUBSTITUTED ALKANOLS OR BY ACYLATION OF SAID ALKANOLS WITH ACRYLOYL OR METHACRYLOYL CHLORIDE, OR BY VINYL ESTER INTERCHANGE OF LOWER VINYL ESTERS WITH CYCLOALIPHATIC- OR AROMATIC-SUBSTITUTED ALKANOIC ACIDS, SAID CARBOCYCLIC ALKYL ACRYLATES AND VINYL ESTERS BEING POLYMERIZABLE MONOMERS USEFUL IN FORMING POLYMERS HAVING UTILITY, FOR EXAMPLE, AS PRESSURE SENSITIVE ADHESIVES.

Inventors

  • 👤 Ramsis Gobran
  • 👤 Hanspeter Knoepfel
  • 👤 Spencer F Silver

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 13:21
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/03; C07C67/14; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C09J133/00; C09J133/04; C09J133/06; C09J7/00; C09J7/30; C09J7/38; C09J7/381; C09J2301/00; C09J2301/30; C09J2301/302; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 27 words
A PRESSURE SENSITIVE ADHESIVE SHEET MATERIAL COMPRISING A FLEXIBLE BACKING SHEET HAVING APPLIED THERETO A PRESSURE SENSITIVE LAYER OF A POLYMER OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 27 words
A PRESSURE SENSITIVE ADHESIVE SHEET MATERIAL COMPRISING A FLEXIBLE BACKING SHEET HAVING APPLIED THERETO A PRESSURE SENSITIVE LAYER OF A POLYMER OF A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim 34 words
The sheet material according to claim 1 wherein R1 is cyclohexyl, cyclopentYl, or cyclopentenyl, R2 is a hydrogen atom, and R3 is an alkylene with 6 to 9 carbon atoms extending in a chain.
Claim 4
Dependent Claim 17 words
The sheet material according to claim 1, wherein R1 is cyclohexyl and R2 is a hydrogen atom.
Claim 5
Dependent Claim 13 words
The sheet material according to claim 1, wherein said polymer is poly(vinyl 10-cyclohexylundecanoate).
Claim 6
Dependent Claim 19 words
The sheet material according to claim 1, wherein said polymer is a copolymer of vinyl 10-cyclohexylundecanoate and ethyl acrylate.
Claim 7
Dependent Claim 19 words
The sheet material according to claim 1, wherein said polymer is a copolymer of vinyl 10-cyclohexylundecanoate and n-butyl acrylate.

References Cited (Backward Citations)

US3740366A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-12-01 1979-06-02 1979-12-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-12-01 1983-06-02 1983-12-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-12-01 1987-06-02 1987-12-02 $7700.00 Window Closed / Lapsed

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