US4073826A
Expired / Lapsed
US
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Tackifiers for elastomers
Assignee: SI Group Inc
•
Filing: 1975-05-05
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Granted: 1978-02-14
•
Expires: 1995-05-05
Abstract
Abstract A tackifier system which includes the reaction product of oxirane bearing materials with alkyl phenol novolacs for elastomers of alpha-olefin polymers which are sulfur curable.
Inventors
- 👤 Thomas M. Galkiewicz
- 👤 Kenneth C. Petersen
- 👤 John L. Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:23
CPC Classifications
C; C08; C08L; C08L21/00; C08L63/00
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
107 words
An admixture of a tackifier resin comprising a resin reaction product AB, wherein A is the residue of an alkyl phenol novolac resin, whrein the alkyl or said alkyl phenol novolac is a hydrocarbon radical of 4 to 16 carbon atoms; and wherein B is a residue of an oxirane bearing material, wherein B comprises 1 to 38 weight percent of AB; wherein AB is substantially a thermoplastic resin, characterized by a WPE of at least 2000, with a sulfur-curable elastomer which is a hydrocarbon, halohydrocarbon or hydrocarbon-acrylonitrile elastomer, wherein said tackifier resin comprises 0.5 to 20 parts by weight to 100 parts by weight of elastomer.
Claim 2
Dependent Claim
107 words
An admixture of a tackifier resin comprising a resin reaction product AB, wherein A is the residue of an alkyl phenol novolac resin, whrein the alkyl or said alkyl phenol novolac is a hydrocarbon radical of 4 to 16 carbon atoms; and wherein B is a residue of an oxirane bearing material, wherein B comprises 1 to 38 weight percent of AB; wherein AB is substantially a thermoplastic resin, characterized by a WPE of at least 2000, with a sulfur-curable elastomer which is a hydrocarbon, halohydrocarbon or hydrocarbon-acrylonitrile elastomer, wherein said tackifier resin comprises 0.5 to 20 parts by weight to 100 parts by weight of elastomer.
Claim 3
Dependent Claim
28 words
The admixture of claim 1, wherein said alkyl phenol novolac is the derivative of an alkyl phenol and formaldehdye, acetaldehyde, acetone, propionaldehyde, butyraldehyde, isobutyraldehyde, benzaldehyde, or mixtures thereof.
Claim 4
Dependent Claim
64 words
The admixture of claim 1, wherein the phenol novolac resin is formed of the repeating units ##STR5## wherein each of R and R'" is alkyl of 4 to 16 carbon atoms and wherein R' and R" are hydrogen, lower alkyl, aryl, or heterocyclic wherein if R' is an alkyl group of more than one carbon atom, aryl or heterocyclic, then R" must be hydrogen.
Claim 5
Dependent Claim
13 words
The admixture of claim 1, wherein said R' and said R" are hydrogen.
Claim 6
Dependent Claim
14 words
The admixture of claim 3, wherein B comprises 5 to 20 percent of AB.
Claim 7
Dependent Claim
14 words
The admixture of claim 3, wherein B comprises 8 to 12 percent of AB.
Claim 8
Dependent Claim
17 words
The admixture of claim 5, wherein A has a formaldehyde: phenol molar ratio of 0.60 to 1.2.
Claim 9
Dependent Claim
16 words
The admixture of claim 4, wherein R is an alkyl of 8 to 12 carbon atoms.
Claim 10
Dependent Claim
14 words
The admixture of claim 8, wherein B comprises 5 to 20 percent of AB.
Claim 11
Dependent Claim
14 words
The admixture of claim 8, wherein B comprises 8 to 12 percent of AB.
Claim 12
Dependent Claim
16 words
The admixture of claim 8, wherein A has the formaldehyde:phenol molar ratio of 0.60 to 1.2.
Claim 13
Dependent Claim
16 words
The admixture of claim 5, wherein AB is characterized by a WPE of at least 4,000.
Claim 14
Dependent Claim
19 words
The admixture of claim 5, wherein AB is characterized by a WPE in the range of 20,000 to 100,000.
Claim 15
Dependent Claim
22 words
The admixture of claim 13, wherein the oxirane bearing material is bisphenol A-epoxide resin, an aliphatic epoxide or a cycloaliphatic epoxide resin.
Claim 16
Dependent Claim
15 words
The admixture of claim 1, wherein the oxirane bearing material is a bisphenol A-epoxide resin.
Claim 17
Dependent Claim
10 words
The admixture of claim 13, containing ethyl triphenyl phosphonium iodide.
Claim 18
Dependent Claim
12 words
The admixture of claim 14, wherein said aliphatic epoxide is propylene oxide.
Claim 19
Dependent Claim
16 words
The admixture of claim 14, wherein said cycloaliphatic epoxide resin is a tetrahydrophthalic diglycidyl ester resin.
Claim 20
Dependent Claim
23 words
The admixture of claim 1, wherein the elastomer is natural rubber, a synthetic diolefin polymer, and ethylene-propylene-non-conjugated polyene terpolymer, or chlorinated butyl rubber.
Claim 21
Dependent Claim
26 words
The admixture of claim 1, wherein the elastomer is natural rubber, polybutadiene, polyisoprene, ethylenepropylene-non-conjugated polyene terpolymer, butyl rubber, halobutyl rubber, alpha-olefin acrylonitrile copolymer or butadiene-styrene copolymer.
Claim 22
Dependent Claim
11 words
The admixture of claim 1, wherein the elastomer is natural rubber.
Claim 23
Dependent Claim
12 words
The admixture of claim 1, wherein the elastomer is a butadiene-styrene copolymer.
Claim 24
Dependent Claim
11 words
The admixture of claim 1, wherein the elastomer is butyl rubber.
Claim 25
Dependent Claim
12 words
The admixture of claim 1, wherein the elastomer is a halobutyl rubber.
Claim 26
Dependent Claim
13 words
The admixture of claim 2, wherein the elastomer is a synthetic diolefin polymer.
Claim 27
Dependent Claim
13 words
The admixture of claim 2, wherein the elastomer is an ethylene-propylene-non-conjugated polyene terpolymer.
Claim 28
Dependent Claim
15 words
The admixture of claim 2, wherein the elastomer is a butadiene polymer or isoprene polymer.
Claim 29
Dependent Claim
10 words
The admixture of claim 2, wherein the elastomer is polychloroprene.
Claim 30
Dependent Claim
16 words
The admixture of claim 1, wherein the elastomer is halohydrocarbon which is halobutyl rubber or polychloroprene.
Claim 31
Dependent Claim
12 words
The admixture of claim 1, wherein the elastomer is an alpha-olefin copolymer.
Claim 32
Dependent Claim
13 words
The admixture of claim 1, wherein the elastomer is an alpha olefin-acrylonitrile copolymer.
Claim 33
Dependent Claim
12 words
The admixture of claim 2, wherein the elastomer is a butadiene-styrene copolymer.
Claim 34
Dependent Claim
16 words
The admixture of claim 22, wherein said elastomer is admixed with at least one other elastomer.
Claim 35
Dependent Claim
21 words
The admixture of claim 15, wherein said epoxy resin based on bisphenol A is the glycidyl ether derivative of bisphenol A.
Claim 36
Dependent Claim
17 words
The admixture of claim 15, wherein the epoxide equivalent weight of said oxirane bearing material is 140-4000.
Claim 37
Dependent Claim
22 words
The admixture of claim 34, in which said oxirane bearing material has an epoxy equivalent weight of at least 185 to 192.
Claim 38
Dependent Claim
22 words
The admixture of claim 36, in which said epoxy bearing material is admixed with a small quantity of ethyltriphenol phosphonium iodide catalyst.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |