Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Having nonchromogenic liquid spread-control or...
Patent
1986-01-02
1987-11-24
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Having nonchromogenic liquid spread-control or...
428 16, 503200, 503214, 503226, 524 58, 524503, 525 58, B41M 518
Patent
active
047089474
ABSTRACT:
This invention relates to a water resistant composition which comprises (A) polyvinyl alcohol, (B) a chitosan of which aqueous 1% solution has a viscosity not greater than 70 centipoise at 20.degree. C. and (C) an aldehyde compound, as well as a heat-sensitive recording sheet which comprises said composition. The composition has excellent water resistant properties and the heat-sensitive recording sheet has improved color forming properties and excellent resistance to water and solvents.
REFERENCES:
patent: 4138362 (1979-02-01), Vassiliades et al.
patent: 4415428 (1983-11-01), Nochumson et al.
patent: 4415490 (1983-11-01), Joh
patent: 4576928 (1986-03-01), Tani et al.
Kohno Hiroji
Maruyama Hitoshi
Okaya Takuji
Ono Isao
Yamauchi Junnosuke
Hess Bruce H.
Kuraray Co. Ltd.
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