摘要:
A surface treatment agent for paper comprising a quaternized product of a copolymer containing at least (a) styrene and/or a styrene derivative and (b) N,N-dialkylaminoalkyl (meth) acrylamide is disclosed. This surface treatment agent is excellent in slip prevention and sizing effect, the sizing effect not being impaired at a pH over 7.
摘要:
A coating composition for coating thin-layer substrates, containing a Si-bonded organopolysiloxane (A) containing unsaturated hydrocarbon radicals and having a viscosity of 50 to -10.sup.7 MpA.s, an organopolysiloxane (B) containing at least three hydrogen-silicon atoms, a noble metal catalyst (C) and an additive (D) which retards the addition reaction at room temperature, wherein polymer (A) contains a number of trifunctional and/or tetrafunctional branch points T.sub.n, and/or Q.sub.n' and a number of Si atoms X.sub.m containing unsaturated hydrocarbon radicals, in whichn is 0 to 10 andn' is 0 to 10 andthe sum of N+n' is 1 to 10, andwherein ##EQU1## the terminal groups of polymer (A) formed by triorganosiloxy units containing at least one unsaturated hydrocarbon radical.
摘要:
A transparency comprised of a supporting substrate and thereover a blend comprised of poly(ethylene oxide), and carboxy methyl cellulose together with a component selected from the group consisting of (1) hydroxypropyl cellulose; (2) vinylmethyl ether/maleic acid copolymer; (3) carboxymethyl hydroxyethyl cellulose; (4) hydroxyethyl celluose; (5) acrylamide/acrylic acid copolymer; (6) cellulose sulfate; (7) poly(2-acrylamido-2-methyl propane sulfonic acid); (8) poly(vinyl alcohol); (9) poly(vinyl pyrrolidone); and (10) hydroxypropyl methyl cellulose. In addition, papers with the aforementioned coatings are disclosed herein.
摘要:
A conductive film-forming composition for use in the manufacture of electrostatic recording paper is provided. This composition comprises a copolymer of a diallylammonium halide derivative with a N-vinylacetamide derivative as an essential component. The conductive paper manufactured by coating or impregnating a substrate paper with this composition is of remarkably high practical value in terms of electrical conductivity, hardness, surface tackiness and solvent resistance.
摘要:
A packet for absorbing and immobilizing a liquid including an envelope which is degradable in the liquid and a liquid absorbing and immobilizing material in the envelope. The envelope has a dot matrix coating of heat-fusible material on degradable starch paper. The dot matrix coating permits heat-sealing of the envelope having the uncoated portions of the starch paper to degrade in solutions in which the dot matrix coating is insoluble. A paper product including a paper which is degradable in liquid and a dot matrix pattern of material on the paper for causing portions of the paper to adhere to each other.
摘要:
A coating binder additive is prepared comprising a blocked glyoxal resin mixed with a vinyl or acrylic water soluble polymer which is reactive with free glyoxal.
摘要:
An impregnated material comprising an organic or inorganic material selected from the group consisting of a woven fabric, a non-woven fabric and an open cell porous material which is impregnated with a copolymer which comprises 50 to 95% by mole of repeating units derived from tetrafluoroethylene and 5 to 50% by mole of repeating units derived from perfluoroalkyl vinyl ether of the formula:CF.sub.2 .dbd.CFOR.sub.f (I)wherein R.sub.f is a C.sub.1 -C.sub.6 perfluoroalkyl group or a group of the formula:--(CF.sub.2 CFXO).sub.n --R.sub.f (II)wherein R.sub.f is the same as defined above, X is a fluorine atom or a trifluoromethyl group and n is an integer of 1 to 10, which has good chemical, corrosion, solvent and oil resistance as well as water- and oil-repellence.
摘要:
New, highly effective cationic sizing agents for paper have been provided. They can be obtained by a method in which a water-soluble cationic chemically pure terpolymer compound consisting of(a) 7-40% by weight of N,N-dimethylaminoethyl acrylate and/or methacrylate,(b) 40-80% by weight of styrene and(c) 4-40% by weight of acrylonitrileis dissolved in an aqueous medium, the sum of the components (a) to (c) always being 100% by weight and at least 10% of the N,N-dimethylamino groups of the terpolymer being quaternized and the remainder being protonated, and, in the presence of 10 to 70% by weight, relative to the monomer mixture below, of this emulsifier,(d) 0 to 90% by weight of acrylonitrile and/or methacrylonitrile,(e) 5 to 95% by weight of styrene and(f) 5 to 95% by weight of acrylates and/or methacrylates having 1 to 12 C atoms in the alcohol radical,the sum of the components (d) to (f) always being 100% by weight, are emulsified, and the emulsion thus obtained is subjected to free radical-initiated emulsion polymerization at temperatures from 20.degree. to 150.degree. C.
摘要:
Polyolefin coated photographic base papers are stabilized by a polymeric hindered amine (Chimassorb 944) having a mean molecular weight above 2500. The stabilizer is highly effective and overcomes a diminution of opacity noted with the use of phosphonate esters of the prior art.