Thermally-developable light-sensitive elements
White photographic paper support and method of producing same
Process for preparing polyolefin resin-coated paper for photographic use Patent #: 4447524
ApplicationNo. 06/622207 filed on 06/19/1984
US Classes:428/328, Heavy metal or aluminum or compound thereof427/411, Paper base427/415, Cellulosic coating428/330, Alkali metal or alkaline earth metal or compound thereof428/513, Monoethylenically unsaturated428/534, Cellulosic next to another cellulosic428/537.5, Of paper428/537.7, Next to layer of metal salt (e.g., plasterboard, etc.)430/536, Polymer of unsaturated monomer430/538Fibrous, e.g., paper, textile, etc.
ExaminersPrimary: Ives, P. C.
Attorney, Agent or Firm
International ClassesG03C 1/79 (20060101)
G03C 1/775 (20060101)
D21H 17/24 (20060101)
D21H 19/00 (20060101)
D21H 19/84 (20060101)
D21H 17/00 (20060101)
D21H 17/16 (20060101)
D21H 17/17 (20060101)
Foreign Application Priority Data1983-08-06 DE
AbstractA photographic paper support made of a water-repellent sized base paper coated on both sides with a waterproof synthetic resin, and wherein the paper contains a combination of sizing substances including a water-repellent sizing agent, a cationic strengthening retention and binding agent and a sulfate or phosphate ester of a polysaccharide. The water-repellent sizing agent relative to the paper fiber content is about 0.2 to 2% by weight, the cationic strengthening and binding agent is greater in amount than about 1.5 of the water-repellent sizing agent, and the amount of the esterified polysaccharide is about 0.1 to 10% by weight relative to the fiber content.