US4581266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transferable laminate
Assignee: Mcc-Dec Tech LLC
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Filing: 1985-03-04
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Granted: 1986-04-08
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Expires: 2005-03-04
Abstract
Abstract An improved release coating for heat transferable laminates wherein an ink design layer is transferred from a carrier web onto an article such as a plastic or glass container upon application of heat and pressure. The improved release coating transfers with the ink design layer and forms an optically clear protective coating over the transferred ink design layer. The transferred release coating upon resolidification has an exceedingly high optical clarity, with no hazing, spotting, or halo discernible over the transferred ink design layer. The improved release coating incorporates a tackifying resin in a wax base. The wax base includes a montan wax and a crystalline wax such as paraffin wax. The wax base may also include a microcrystalline wax component. The preferred tackifying resin is selected from the polyterpene class.
Inventors
- 👤 Frank A. Magnotta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B44C1/172; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1419; Y10T428/24; Y10T428/24628; Y10T428/24736; Y10T428/24802; Y10T428/24843; Y10T428/28; Y10T428/2839; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
220 words
An improved heat transferable laminate of the type comprising a substrate affixed to a support member for transfer from the support member to an article upon application of heat to the support member while said article contacts the substrate, wherein the substrate comprises in sequence a release layer in contact with the support member and an ink design layer over the release layer, wherein an improved release layer comprises: a paraffin wax comprising linear saturated C 18 to C 32 hydrocarbon having a melting point between about 110° F. and 150° F., a montan wax being oxidized, esterified, and partially saponified, and a thermoplastic tackifying resin comprising a transparent nonwax hydrocarbon polymer comprising polyterpene, said tackifying polymer having a softening point between about 80° C. and 135° C., which tackifying polymer resists oxidation under ambient conditions and has a Color Gardner No. of between about 1 and 4, the tackifying polymer's resistance to oxidation preventing dulling of the ink design layer after the substrate has been transferred to an article, wherein the paraffin wax comprises between about 15 to 30 percent by weight of said release layer, the montan wax comprises between about 15 to 35 percent by weight of said release layer and the tackifying polymer comprises between about 15 to 50 percent by weight of said release layer.
Claim 2
Dependent Claim
220 words
An improved heat transferable laminate of the type comprising a substrate affixed to a support member for transfer from the support member to an article upon application of heat to the support member while said article contacts the substrate, wherein the substrate comprises in sequence a release layer in contact with the support member and an ink design layer over the release layer, wherein an improved release layer comprises: a paraffin wax comprising linear saturated C 18 to C 32 hydrocarbon having a melting point between about 110° F. and 150° F., a montan wax being oxidized, esterified, and partially saponified, and a thermoplastic tackifying resin comprising a transparent nonwax hydrocarbon polymer comprising polyterpene, said tackifying polymer having a softening point between about 80° C. and 135° C., which tackifying polymer resists oxidation under ambient conditions and has a Color Gardner No. of between about 1 and 4, the tackifying polymer's resistance to oxidation preventing dulling of the ink design layer after the substrate has been transferred to an article, wherein the paraffin wax comprises between about 15 to 30 percent by weight of said release layer, the montan wax comprises between about 15 to 35 percent by weight of said release layer and the tackifying polymer comprises between about 15 to 50 percent by weight of said release layer.
Claim 3
Dependent Claim
17 words
A heat transferable laminate as in claim 1 wherein the wax component further comprises a microcrystalline wax.
Claim 4
Dependent Claim
21 words
A heat transferable laminate as in claim 1 wherein the tackifying resin is formed by the polymerization of isoprene and piperylene.
Claim 5
Dependent Claim
21 words
A heat transferable laminate as in claim 1 wherein the tackifying resin is formed by the polymerization of beta-pinene and dipentene.
Claim 6
Dependent Claim
33 words
A heat transferable laminte as in claim 1 wherein the release layer further comprises a resin binder selected from the group consisting of ethylene-vinyl acetate copolymer and ethylene vinyl acetate acrylic acid terpolymer.
Claim 7
Dependent Claim
30 words
A heat transferable laminate as in claim 2 wherein the microcrystalline wax comprises saturated C 34 to C 60 hydrocarbons having a melting point between about 145° to 175° F.
Claim 8
Dependent Claim
26 words
A heat transferable laminate as in claim 1 wherein the release layer in solid state has a color Gardner No. of between about 1 and 4.
Claim 9
Dependent Claim
27 words
A heat transferable laminate as in claim 6 wherein the weight ratio of montan wax to tackifying resin is in a range between about 0.3/1 to 2.3/1.
Claim 10
Dependent Claim
133 words
An improved heat transferable laminate of the type comprising a substrate affixed to a support member for transfer from the support member to an article, wherein the substrate comprises in sequence a release layer and ink design layer, said release layer in contact with the support member, the improvement comprising: the release layer comprising a paraffin wax, an oxidized esterified, partially saponified montan wax and a thermoplastic tackifying polymer comprising a transparent non-wax hydrocarbon polymer comprising polyterpene, said tackifying polymer having a softening point between about 80° C. and 135° C. which tackifying polymer resists oxidation under ambient conditions and has a color Gardner No. of between about 1 and 4, the tackifying polymer's resistance to oxidation preventing dulling of the ink design layer after the substrate has been transferred to an article.
Claim 11
Dependent Claim
133 words
An improved heat transferable laminate of the type comprising a substrate affixed to a support member for transfer from the support member to an article, wherein the substrate comprises in sequence a release layer and ink design layer, said release layer in contact with the support member, the improvement comprising: the release layer comprising a paraffin wax, an oxidized esterified, partially saponified montan wax and a thermoplastic tackifying polymer comprising a transparent non-wax hydrocarbon polymer comprising polyterpene, said tackifying polymer having a softening point between about 80° C. and 135° C. which tackifying polymer resists oxidation under ambient conditions and has a color Gardner No. of between about 1 and 4, the tackifying polymer's resistance to oxidation preventing dulling of the ink design layer after the substrate has been transferred to an article.
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) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |