US4760108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microcapsule-containing water-base coating formulation and copying and/or recording material making use of said coating formulation
Assignee: Mitsui Toatsu Chemicals Inc
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Filing: 1985-12-20
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Granted: 1988-07-26
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Expires: 2005-12-20
Abstract
Abstract A microcapsule-containing water-base coating formulation comprises as essential components (a) microcapsules making use of a synthetic resin as a wall-forming material and (b) a reaction product obtained by polymerizing at least one water-soluble vinyl monomer (B) in the presence of a high polymer latex (A) having a glass transition point of 60° C. or lower. The latex (A) and vinyl monomer (B) are used at a solid weight ratio of 3:97-90:10. The water-base coating formulation can provide a microcapsule-coated layer having significantly-improved pressure resistance and frictional stability without need for a stilt. The water-base coating formulation can be applied at a high speed, thereby making a significant improvement to the productivity of carbonless copying and/or recording paper.
Inventors
- 👤 Makoto Asano
- 👤 Kiyoharu Hasegawa
- 👤 Masatoshi Takagi
- 👤 Takamine Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:24
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/165
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A water-base coating formulation comprising as essential components: (a) microcapsules making use of a synthetic resin as a wall-forming material; and (b) a reaction product obtained by polymerizing at least one water-soluble vinyl monomer (B) in the presence of a high polymer latex (A) having a glass transition point of 60° C. or lower, said latex (A) and vinyl monomer (B) being used at a solid weight ratio of 3:97-90:10.
Claim 2
Dependent Claim
70 words
A water-base coating formulation comprising as essential components: (a) microcapsules making use of a synthetic resin as a wall-forming material; and (b) a reaction product obtained by polymerizing at least one water-soluble vinyl monomer (B) in the presence of a high polymer latex (A) having a glass transition point of 60° C. or lower, said latex (A) and vinyl monomer (B) being used at a solid weight ratio of 3:97-90:10.
Claim 3
Dependent Claim
72 words
A water-base coating formulation comprising as essential components: (a) microcapsules making use of a synthetic resin as a wall-forming material; (b) a reaction product obtained by polymerizing at least one water-soluble vinyl monomer (B) in the presence of a high polymer latex (A) having a glass transition point of 60° C. or lower, said latex (A) and vinyl monomer (B) being used at a solid weight ratio of 3:97-90:10; and (c) talc.
Claim 4
Dependent Claim
72 words
A water-base coating formulation comprising as essential components: (a) microcapsules making use of a synthetic resin as a wall-forming material; (b) a reaction product obtained by polymerizing at least one water-soluble vinyl monomer (B) in the presence of a high polymer latex (A) having a glass transition point of 60° C. or lower, said latex (A) and vinyl monomer (B) being used at a solid weight ratio of 3:97-90:10; and (c) talc.
Claim 5
Dependent Claim
54 words
The water-base coating formulation as claimed in claim 2, wherein per 100 parts by solid weight of the microcapsules (a) making use of the synthetic resin as the wall-forming material, the reaction product (b) and talc (c) are contained in amounts of 2-50 parts by solid weight and 3-100 parts by solid weight respectively.
Claim 6
Dependent Claim
38 words
A water-base coating formulation comprising as essential components: (a) microcapsules making use of a synthetic resin as a wall-forming material; (b') a high polymer latex having a glass transition point of 60° C. or lower; and (c) talc.
Claim 7
Dependent Claim
38 words
A water-base coating formulation comprising as essential components: (a) microcapsules making use of a synthetic resin as a wall-forming material; (b') a high polymer latex having a glass transition point of 60° C. or lower; and (c) talc.
Claim 8
Dependent Claim
65 words
The water-base coating formulation as claimed in claim 4, wherein per 100 parts by solid weight of the microcapsules (a) making use of the synthetic resin as the wall-forming material, the high polymer latex (b') having the glass transition point of 60° C. or lower and talc (c) are contained in amounts of 2-50 parts by solid weight and 3-100 parts by solid weight respectively.
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) | 1991-07-26 | 1992-01-25 | 1992-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-26 | 1996-01-25 | 1996-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-26 | 2000-01-25 | 2000-07-26 | $7700.00 | Window Closed / Lapsed |