Patent USH1251H successfully refreshed from Google Patents.
USH1251H
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic-containing diene copolymers in adhesives, sealants and coatings
Assignee: Shell USA Inc
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Filing: 1992-04-24
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Granted: 1993-11-02
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Expires: 2012-04-24
Abstract
Abstract A hot melt adhesive composition comprising a tackifying resin and a polymer which comprises at least one conjugated diolefin and at least one acrylic monomer such as an alkyl methacrylate.
Inventors
- 👤 Jeffrey G. Southwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:53
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
124 words
A hot melt adhesive composition comprising a tackifying resin and a block comprising at least one conjugated diolefin block having a molecular weight from 20,000 to 175,000, at least one vinyl aromatic hydrocarbon block having a molecular weight from 4,000 to 30,000 and at least one acrylic monomer block having a molecular weight from 100 to 30,000 with the structure ##STR3## wherein R 1 is selected from the group consisting of hydrogen, phenyl and alkyl radicals which are linear or branched and contain from 1 to 10 carbon atoms, and R 2 is a cyclic or non-cyclic alkyl radical which is branched at the first carbon atom, contains from 1 to 14 carbon atoms and may contain a tertiary amine or an ether linkage.
Claim 2
Dependent Claim
124 words
A hot melt adhesive composition comprising a tackifying resin and a block comprising at least one conjugated diolefin block having a molecular weight from 20,000 to 175,000, at least one vinyl aromatic hydrocarbon block having a molecular weight from 4,000 to 30,000 and at least one acrylic monomer block having a molecular weight from 100 to 30,000 with the structure ##STR3## wherein R 1 is selected from the group consisting of hydrogen, phenyl and alkyl radicals which are linear or branched and contain from 1 to 10 carbon atoms, and R 2 is a cyclic or non-cyclic alkyl radical which is branched at the first carbon atom, contains from 1 to 14 carbon atoms and may contain a tertiary amine or an ether linkage.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein the tackifying resin comprises from about 10 parts to about 400 parts by weight per 100 parts rubber.
Claim 4
Dependent Claim
31 words
The composition of claim 1 wherein the acrylic monomer block is derivatized and is selected from the group consisting of polyacrylic acids, polyacrylic anhydrides, unconverted ester functional forms and mixtures thereof.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the polymer is selectively hydrogenated.
Claim 6
Dependent Claim
10 words
An assembly adhesive composition comprising the composition of claim 1.
Claim 7
Dependent Claim
11 words
A mastic comprising the composition of claim 1 and a solvent.
Claim 8
Dependent Claim
12 words
A sealant composition comprising the composition of claim 1 and a solvent.
Claim 9
Dependent Claim
12 words
A coating composition comprising the composition of claim 1 and a solvent.
Claim 10
Dependent Claim
18 words
A high temperature pressure sensitive adhesive made with the composition of claim 1 and a suitable crosslinking agent.
Claim 11
Dependent Claim
26 words
The composition of claim 1 which additionally comprises from 10 to 60 weight % of a diblock of the vinyl aromatic hydrocarbon and the conjugated diolefin.
Claim 12
Dependent Claim
13 words
The composition of claim 1 wherein the acrylic monomer is an alkyl methacrylate.
Claim 13
Dependent Claim
13 words
The composition of claim 11 wherein the alkyl methacrylate is tertiary butyl methacrylate.
Claim 14
Dependent Claim
10 words
A pressure sensitive made with the composition of claim 1.
Claim 15
Dependent Claim
12 words
A tape comprising the composition of claim 13 and a backing material.
Claim 16
Dependent Claim
12 words
A label comprising the composition of claim 13 and a backing material.
Claim 17
Dependent Claim
27 words
The composition of claim wherein the polymer is a linear A-B-A-acrylic monomer block copolymer wherein A is a vinyl aromatic hydrocarbon and B is a conjugated diene.
Claim 18
Dependent Claim
20 words
The composition of claim 16 which additionally comprises 15 to 50 weight % of a coupled A-B-A-acrylic monomer-A-B-A block copolymer.
Claim 19
Dependent Claim
13 words
The composition of claim 16 wherein A is styrene and B is isoprene.
Claim 20
Dependent Claim
13 words
The composition of claim 18 wherein the acrylic monomer is an alkyl methacrylate.
Claim 21
Dependent Claim
13 words
The composition of claim 19 wherein the alkyl methacrylate is tertiary butyl methacrylate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-01 | 1997-05-03 | 1997-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-01 | 2001-05-03 | 2001-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-01 | 2005-05-03 | 2005-11-02 | $7700.00 | Window Closed / Lapsed |