US3616362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the tack of ethylene-propylene polymers by radiation
Assignee: Union Carbide Corp
•
Filing: 1968-04-02
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Granted: 1971-10-26
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Expires: 1988-04-02
Abstract
Abstract This invention relates to a method of improving the tack of ethylene-propylene polymers in a relatively short period of time by adding thereto a polymeric phenolic tackifier and exposing the resultant compositions to ionizing radiation or nonionizing radiation.
Inventors
- 👤 Anthony C Soldatos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:43
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08C; C08C19/00; C08J; C08J3/00; C08J3/28; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
33 words
A method of improving the tack of a composition as defined in claim 1 by subjecting said composition to high-energy electrons for a period of time sufficient to develop tack in said compositions.
Claim 2
Dependent Claim
14 words
A method as defined in claim 1 wherein the tackifier is a phenol-formaldehyde resin.
Claim 3
Dependent Claim
16 words
A method as defined in claim 1 wherein the tackifier is a phenolated polymer of isoprene.
Claim 4
Dependent Claim
14 words
A method as defined in claim 1 wherein the tackifier is a phenolated polyisoprene.
Claim 5
Dependent Claim
15 words
A method as defined in claim 1 wherein the tackifier is polyisoprene phenolated with p-dodecylphenol.
Claim 6
Dependent Claim
28 words
A method as defined in claim 1 wherein the tackifier is a phenolated copolymer or interpolymer of isoprene and a compound having at least one olefinic double bond.
Claim 7
Dependent Claim
33 words
A method of improving the tack of a composition as defined in claim 1 by subjecting said composition to ultraviolet light for a period of time sufficient to develop tack in said composition.
Claim 8
Dependent Claim
14 words
A method as defined in claim 8 wherein the tackifier is a phenol-formaldehyde resin.
Claim 9
Dependent Claim
16 words
A method as defined in claim 8 wherein the tackifier is a phenolated polymer of isoprene.
Claim 10
Dependent Claim
14 words
A method as defined in claim 8 wherein the tackifier is a phenolated polyisoprene.
Claim 11
Dependent Claim
15 words
A method as defined in claim 8 wherein the tackifier is polyisoprene phenolated with p-dodecylphenol.
Claim 12
Dependent Claim
28 words
A method as defined in claim 8 wherein the tackifier is a phenolated copolymer or interpolymer of isoprene and a compound having at least one olefinic double bond.
Claim 13
Dependent Claim
33 words
A method of improving the tack of a composition as defined in claim 1 by subjecting said composition to infrared light for a period of time sufficient to develop tack in said composition.
Claim 14
Dependent Claim
14 words
A method as defined in claim 14 wherein the tackifier is a phenol-formaldehyde resin.
Claim 15
Dependent Claim
16 words
A method as defined in claim 14 wherein the tackifier is a phenolated polymer of isoprene.
Claim 16
Dependent Claim
14 words
A method as defined in claim 14 wherein the tackifier is a phenolated polyisoprene.
Claim 17
Dependent Claim
15 words
A method as defined in claim 14 wherein the tackifier is polyisoprene phenolated with p-dodecylphenol.
Claim 18
Dependent Claim
28 words
A method as defined in claim 14 wherein the tackifier is a phenolated copolymer or interpolymer of isoprene and a compound having at least one olefinic double bond.
Claim 19
Dependent Claim
33 words
A method of improving the tack of a composition as defined in claim 16 by subjecting said composition to fluorescent light for a period of time sufficient to develop tack in said composition.
Claim 20
Dependent Claim
14 words
A method as defined in claim 20 wherein the tackifier is a phenol-formaldehyde resin.
Claim 21
Dependent Claim
16 words
A method as defined in claim 20 wherein the tackifier is a phenolated polymer of isoprene.
Claim 22
Dependent Claim
14 words
A method as defined in claim 20 wherein the tackifier is a phenolated polyisoprene.
Claim 23
Dependent Claim
15 words
A method as defined in claim 20 wherein the tackifier is polyisoprene phenolated with p-dodecylphenol.
Claim 24
Dependent Claim
28 words
A method as defined in claim 20 wherein the tackifier is a phenolated copolymer or interpolymer of isoprene and a compound having at least one olefinic double bond.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |