US3929703A
Expired / Lapsed
US
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Adhesive compositions containing zinc resinates of disproportionated rosin
Assignee: Kraton Chemical LLC
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Filing: 1974-05-16
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Granted: 1975-12-30
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Expires: 1994-05-16
Abstract
Abstract Slightly basic zinc resinates of disproportionated rosin are used as ingredients of pressure-sensitive adhesives and hot-melt adhesives.
Inventors
- 👤 Henry P Weymann
- 👤 John Korose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:58
CPC Classifications
C; C09; C09J; C09J193/00; C09J193/04; C09F; C09F1/00; C09F1/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
146 words
AN ADHESIVE COMPOSITION THAT COMPRISES A POLYMERIC MATERIAL SELECTED FROM THE GROOUP CONSISTING OF NATURAL RUBBER, POLYETHYLENE, ETHYLENE-VINYL ACETATE COPOLYMERS, POLYCHLOROPRENE, BUTADIENE-ACRYLONTRILE POLYMERS, BLOCK POLYMERS OF STYRENE WITH BUTADIENE, BLOCK POLYMERS IF STYRENE WITH ISOPRENE, AND MIXTURES THEREOF AND 25 PERCENT 400 PERCENT, BASED ON THE WEIGHT OF SAID POLYMERIC MATERIAL, OF A ZINC RESINATE OF DISPROPORTIONATE ROSIN, SAID RESINATE BEING THE PRODUCT PREPARED BY (A) FORMING A MIXTURE THAT CONSISTS OF 100 PARTS BY WEIGHT OF DISPROPORTIONED ROSIN THAT HAS A BALL AND RING SOFTENING POINT IN THE RANGE OF ABOUT 40*C. TO 75*C., 10 TO 17 PARTS BY WEIGHT OF ZINC OXIDE, AND 0 TO 4 PARTS BY WEIGHT OF HYDRATE LIME AND (b) HEATING SAID MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 50*C. TO 100*C. TO FORM A RESINATE HAVING A CALCULATED ACID NUMBER IN THE RANGE OF 0 TO -70.
Claim 2
Dependent Claim
146 words
AN ADHESIVE COMPOSITION THAT COMPRISES A POLYMERIC MATERIAL SELECTED FROM THE GROOUP CONSISTING OF NATURAL RUBBER, POLYETHYLENE, ETHYLENE-VINYL ACETATE COPOLYMERS, POLYCHLOROPRENE, BUTADIENE-ACRYLONTRILE POLYMERS, BLOCK POLYMERS OF STYRENE WITH BUTADIENE, BLOCK POLYMERS IF STYRENE WITH ISOPRENE, AND MIXTURES THEREOF AND 25 PERCENT 400 PERCENT, BASED ON THE WEIGHT OF SAID POLYMERIC MATERIAL, OF A ZINC RESINATE OF DISPROPORTIONATE ROSIN, SAID RESINATE BEING THE PRODUCT PREPARED BY (A) FORMING A MIXTURE THAT CONSISTS OF 100 PARTS BY WEIGHT OF DISPROPORTIONED ROSIN THAT HAS A BALL AND RING SOFTENING POINT IN THE RANGE OF ABOUT 40*C. TO 75*C., 10 TO 17 PARTS BY WEIGHT OF ZINC OXIDE, AND 0 TO 4 PARTS BY WEIGHT OF HYDRATE LIME AND (b) HEATING SAID MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 50*C. TO 100*C. TO FORM A RESINATE HAVING A CALCULATED ACID NUMBER IN THE RANGE OF 0 TO -70.
Claim 3
Dependent Claim
30 words
A pressure-sensitive adhesive composition as defined in claim 1 that comprises natural rubber and 25 percent to 100 percent, based on the weight of the rubber, of said zinc resinate.
Claim 4
Dependent Claim
25 words
A pressure-sensitive adhesive composition as defined in claim 2 wherein the zinc resinate has a calculated acid number in the range of -10 to -60.
Claim 5
Dependent Claim
70 words
A hot-melt adhesive composition as defined in claim 1 that comprises (a) 10 percent to 50 percent by weight of a polyolefin resin selected from the group consisting of polyethylene and ethylene-vinyl acetate copolymers; (b) 20 percent to 50 percent by weight of a wax selected from the group consisting of paraffin, microcrystalline wax, and mixtures thereof; and (c) 30 percent to 60 percent by weight of said zinc resinate.
Claim 6
Dependent Claim
70 words
A hot-melt adhesive composition as defined in claim 4 that comprises (a) 20 percent to 30 percent by weight of a polyolefin resin selected from the group consisting of polyethylene and ethylene-vinyl acetate copolymers; (b) 30 percent to 40 percent by weight of a wax selected from the group consisting of paraffin, microcrystalline wax, and mixtures thereof; and (c) 40 percent to 50 percent by weight of said zinc resinate.
Claim 7
Dependent Claim
25 words
A hot-melt adhesive composition as defined in claim 4 wherein the zinc resinate has a calculated acid number in the range of -10 to -60.
Claim 8
Dependent Claim
18 words
A hot-melt adhesive composition as defined in claim 4 wherein the polyolefin resin is an ethylene-vinyl acetate copolymer.
Claim 9
Dependent Claim
15 words
A hot-melt adhesive composition as defined in claim 4 wherein the polyolefin resin is polyethylene.
Claim 10
Dependent Claim
14 words
A hot-melt adhesive composition as defined in claim 4 wherein the wax is paraffin.
Claim 11
Dependent Claim
26 words
A hot-melt adhesive compositions as defined in claim 4 wherein the wax is microcrystalline wax having a melting point in the range of 75*C. to 90*C.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |