Patent US4241143A successfully refreshed from Google Patents.
US4241143A
Expired / Lapsed
US
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Process for producing highly glossy coated paper
Assignee: Mitsubishi Paper Mills Ltd
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Filing: 1979-03-13
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Granted: 1980-12-23
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Expires: 1999-03-13
Abstract
Abstract A cast coated paper which has the 20 DEG reflection gloss of 15% or more and good ink receptivity is produced by applying to a paper an aqueous coating color containing satin white in an amount of 5 to 40 parts by weight based on 100 parts by weight of pigments including the satin white, and a polymer latex having a Tg more than 45 DEG C. in an amount of 5 to 40 parts by weight of 100 parts by weight of the pigments including the satin white.
Inventors
- 👤 Yutaka Ashie
- 👤 Yasuhiro Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:55
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385; D21H19/40; D21H19/44; D21H19/56; D21H19/58; D21H25/00; D21H25/08; D21H25/12; D21H25/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31906; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
81 words
A process for producing a high gloss coated paper comprising applying to paper an aqueous coating color containing 5 to 40 parts by weight of satin white per 100 parts by weight of total pigments and 5 to 40 parts by weight of a polymer latex having a Tg more than 45° C. per 100 parts by weight of total pigments, drying and subjecting the dried, coated substrate to specular finishing at a temperature higher than Tg of the polymer latex.
Claim 2
Dependent Claim
81 words
A process for producing a high gloss coated paper comprising applying to paper an aqueous coating color containing 5 to 40 parts by weight of satin white per 100 parts by weight of total pigments and 5 to 40 parts by weight of a polymer latex having a Tg more than 45° C. per 100 parts by weight of total pigments, drying and subjecting the dried, coated substrate to specular finishing at a temperature higher than Tg of the polymer latex.
Claim 3
Dependent Claim
31 words
The process according to claim 1 wherein the amount of the satin white is in the range of 10-20 parts by weight per 100 parts by weight of the total pigments.
Claim 4
Dependent Claim
24 words
The process according to claim 1, wherein the polymer latex is a polyvinyl acetate latex, styrene-isoprene copolymer latex, styrene-butadiene latex or acrylic polymer latex.
Claim 5
Dependent Claim
31 words
The process according to claim 1, wherein the amount of the polymer latex is in the range of 15-30 parts by weight per 100 parts by weight of the total pigment.
Claim 6
Dependent Claim
22 words
The process according to claim 1, wherein the specular finishing is carried out at a temperature ranging from 100° to 200° C.
Claim 7
Dependent Claim
27 words
The process according to claim 1, wherein the specular finishing is carried out at a temperature higher than the Tg of the polymer latex by 30°-130° C.
Claim 8
Dependent Claim
22 words
The process according to claim 1, wherein the specular finishing is carried out under a linear pressure of 40 to 190 kg/cm.
Claim 9
Dependent Claim
31 words
The process according to claim 1, wherein the the amount of the coating color applied onto one side of paper is in the range of 5 to 40 grs/m 2 .
Claim 10
Dependent Claim
13 words
A high gloss coated paper produced by the process according to claim 1.
Claim 11
Dependent Claim
138 words
A process according to claim 1 wherein the amount of satin white is in the range of 10-20 parts by weight per 100 parts by weight of the total pigment, the polymer latex is a polyvinyl acetate latex, styrene-isoprene copolymer latex, styrene-butadiene latex or acrylic polymer latex, the amount of the polymer latex is in the range of 15-30 parts by weight per 100 parts by weight of the total pigment, the specular finishing is carried out at a temperature ranging from 100° to 200° C. and higher than the Tg of the polymer latex by 30°-130° C., the specular finishing is carried out under a linear pressure of 40 to 190 kg/cm and the amount of the coating color applied onto one side of the paper is in the range of 5 to 40 grams/m 2 .
Claim 12
Dependent Claim
19 words
A process according to claim 10 wherein the coated paper has a gloss at 20° of at least 15%.
Claim 13
Dependent Claim
19 words
A process according to claim 1 wherein the coated paper has a gloss at 20° of at least 15%.
Claim 14
Dependent Claim
22 words
A high gloss coated paper produced by the process according to claim 10 having a gloss at 20° of at least 15%.
Claim 15
Dependent Claim
22 words
A high gloss coated paper produced by the process according to claim 1 having a gloss at 20° of at least 15%.
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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |