US4365002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated plastic films
Assignee: Daicel Corp
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Filing: 1981-06-17
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Granted: 1982-12-21
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Expires: 2001-06-17
Abstract
Abstract A coated plastic film possessing good printability slip properties, oxygen and moisture barrier properties and transparency which comprises applying to a plastic film a coating solution of a thermoplastic resin as base resin in which a synthetic resin of a network structure having a softening temperature above 100° C. and being in the form of a fine powder are added, and drying thereafter.
Inventors
- 👤 Shigeyuki Takahashi
- 👤 Shozo Yamamoto
- 👤 Nagayoshi Tsukane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:44
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/048; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31928; Y10T428/31942; Y10T428/31949; Y10T428/31953
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
75 words
A coated plastic film possessing good printability, slip properties, oxygen and moisture barrier properties and transparency, comprising a plastic film and a coating thereon, said coating including a thermoplastic base resin and a crosslinked, electrostatically neutral synthetic resin in an amount of from 0.01-2 parts by weight per 100 parts by weight of said thermoplastic resin, said synthetic resin having a softening temperature of above 100° C. and an average particle diameter of 1-20 microns.
Claim 2
Dependent Claim
75 words
A coated plastic film possessing good printability, slip properties, oxygen and moisture barrier properties and transparency, comprising a plastic film and a coating thereon, said coating including a thermoplastic base resin and a crosslinked, electrostatically neutral synthetic resin in an amount of from 0.01-2 parts by weight per 100 parts by weight of said thermoplastic resin, said synthetic resin having a softening temperature of above 100° C. and an average particle diameter of 1-20 microns.
Claim 3
Dependent Claim
27 words
The coated plastic film according to claim 1, wherein the synthetic resin is a crosslinked acrylic copolymer, a crosslinked styrene copolymer or a crosslinked vinyl chloride copolymer.
Claim 4
Dependent Claim
16 words
The coated plastic film according to claim 1, wherein the synthetic resin is a benzoguanamine-formaldehyde condensate.
Claim 5
Dependent Claim
27 words
The coated plastic film according to claim 1, wherein the thermoplastic resin is a vinylidene copolymer, an acrylic copolymer, a vinyl acetate copolymer or a mixture thereof.
Claim 6
Dependent Claim
24 words
The coated plastic film according to claim 1, wherein the plastic film is a polypropylene film, a polyester film or a cellulosic resin film.
Claim 7
Dependent Claim
16 words
The coated plastic film according to claim 1, wherein the synthetic resin is a crosslinked copolymer.
Claim 8
Dependent Claim
64 words
The coated plastic film according to claim 1, wherein the plastic film is a polypropylene film, a polyester film or a cellulosic resin film, the thermoplastic resin is a vinylidene copolymer, an acrylic copolymer, a vinyl acetate copolymer or a mixture thereof and the synthetic resin is a crosslinked acrylic copolymer, a crosslinked styrene copolymer, a crosslinked vinyl chloride copolymer or a benzoguanamine-formaldehyde condensate.
Claim 9
Independent Claim
93 words
A method of producing a coated plastic film having good printability, slip properties, oxygen and moisture barrier properties and transparency which comprises: dissolving a thermoplastic resin in a solvent liquid; dispersing in said solution 0.01-2 parts by weight per 100 parts of said thermoplastic resin of a crosslinked, electrostatically neutral synthetic resin having a softening temperature of about 100° C. and an average particle size of 1-20 microns and being substantially insoluble in said solvent liquid; coating the surface of a plastic film with said dispersion; and thereafter drying said coated plastic film.
Claim 10
Independent Claim
93 words
A method of producing a coated plastic film having good printability, slip properties, oxygen and moisture barrier properties and transparency which comprises: dissolving a thermoplastic resin in a solvent liquid; dispersing in said solution 0.01-2 parts by weight per 100 parts of said thermoplastic resin of a crosslinked, electrostatically neutral synthetic resin having a softening temperature of about 100° C. and an average particle size of 1-20 microns and being substantially insoluble in said solvent liquid; coating the surface of a plastic film with said dispersion; and thereafter drying said coated plastic film.
Claim 11
Dependent Claim
31 words
The method according to claim 8 which further comprises: treating the surface of the plastic film prior to the coating step so as to improve the adhesion of the coating thereon.
Claim 12
Dependent Claim
23 words
The method of claim 9, wherein the surface of the plastic film is treated by corona discharge, high frequency, flame or chromic acid.
Claim 13
Dependent Claim
14 words
The method according to claim 9 which further comprises adding an adhesion improving agent.
Claim 14
Dependent Claim
24 words
The method according to claim 8, wherein the synthetic resin is a crosslinked acrylic copolymer, a crosslinked styrene copolymer or a crosslinked vinylchloride copolymer.
Claim 15
Dependent Claim
13 words
The method of claim 8, wherein the synthetic resin is a benzoguanamine-formaldehyde condensate.
Claim 16
Dependent Claim
25 words
The method according to claim 8, wherein the thermoplastic resin is a vinylidene copolymer, an acrylic copolymer, a vinyl acetate copolymer or a mixture thereof.
Claim 17
Dependent Claim
22 words
The method according to claim 8, wherein the plastic film is a polypropylene film, a polyester film or a cellulosic resin film.
Claim 18
Dependent Claim
14 words
The method according to claim 8, wherein the synthetic resin is a crosslinked copolymer.
Claim 19
Dependent Claim
13 words
The method according to claim 8, wherein the plastic film is a copolymer.
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) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |