摘要:
This invention relates to a process for the preparation of a thermosetting resinous composition which comprises polymerizing (a) a water-soluble resin having an acid group of an acid value of 5 to 300 neutralized with a basic substance and (b) at least one Alpha , Beta -ethylenically unsaturated monomer, at least one of said components (a) and (b) containing a group capable of releasing an isocyanate group under heating, the polymerization being conducted in water at a temperature lower than the isocyanate-releasing temperature, and to a process for the preparation of a powdery thermosetting resinous composition which comprises spray-drying the aqueous dispersion obtained according to the above process.
摘要:
A method of preparing a decorative layer which comprises spraycoating a mortar composition containing 3 - 50 wt% of an epoxy resin and an epoxy hardener, 5 - 70 wt% cement, 5 - 70 wt% of an aggregate powder and 5 - 30 wt% water onto the surface of a base so as to form a concavo-convex surface pattern, pressing the top of the convex portions of the surface while in a semihardened condition to form flat areas on the tops of the convex portions and finish-coating the surface with a synthetic resin enamel or lacquer.
摘要:
1. A THERMOSETTING SYNTHETIC POLYMER DISPERSION COMPRISING A MIXTURE OF (I) A SYNTHETIC POLYMER DISPERSION COMPRISING PARTICLES OF A COPOLYMER FORMED FROM (A) A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER AND (B) A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER HAVING A CHEMICALLY REACTIVE CROSS-LINKING GROUP AND A PROTECTIVE LAYER FORMED AROUND SAID COPOLYMER PARTICLES, WHICH IS COMPOSED OF A STABILIZER (I) HAVING A COMPONENT COMPARTIBLE WITH SAID COPOLYMER OR BEING CHEMICALLY BONDED THERETO AND (II) BEING SOLVATED IN AN ORGANIC LIQUID HAVING NO POLARITY OR A LOW POLARITY, SAID COPOLYMER PARTICLES BEING STABLY DISPERSED IN THE ORGANIC LIQUID BY SAID PROTECTIVE LAYER AND HAVING AN AVERAGE PARTICLE SIZE OF 0.1 TO 10U, AND (II) A SYNTHETIC POLYMER DISPERSION COMPRISING PARTICLES OF A COPOLYMER FORMED FROM (A) A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMELR AND (C) A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER HAVING A COMPLEMENTARY, CHEMICALLY REACTIVE CROSS-LINKING GROUP CAPABLE OF REACTING WITH THE CHEMICALLY REACTIVE CROSS-LINKING GROUP OF THE PARTICLES IN DISPERSION (I) AND A PROTECTIVE LAYER FORMED AROUND SAID COPOLYMER PARTICLES, WHICH IS COMPOSED OF A STABILIZER (I) HAVING A COMPONENT COMPARTIBLE WITH SAID COPOLYMER OR BEING CHEMICALLY BONDED THERETO AND (II) BEING SOLVATED IN AN ORGANIC LIQUID HAVING NO POLARITY OR A LOW POLARITY, SAID COPOLYMER PARTICLES BEING STABLY DISPERSED IN THE ORGANIC LIQUID BY SAID PROTECTIVE LAYER AND HAVING AN AVERAGE PARTICLE SIZE OF 0.1 TO 10U.
摘要:
THIS INVENTION RELATES TO A POLYMER DISPERSION USEFUL ESPECIALLY AS A COATING COMPOSITION, WHICH COMPRISES AN ORGANIC LIQUID AS A DISPERSION MEDIUM AND AN OIL-MODIFED ALKYD RESIN SOLVATED IN THE ORGANIC LIQUID, THE OILMODIFIED ALKYD RESIN BEING BLOCK-OR GRAFT-POLYMERIZED WITH ACRYLONITRILE AND OTHER COPOLYMERIZABLE MONOMERS, AND TO A PROCESS FOR THE PREPARATION OF SUCH POLYMER DISPERSION.
摘要:
A THERMOLUMINESCENT MATERIAL WHICH COMPRISES A COMPLEX OXIDE HOST CRYSTAL OF MAGNESIUM OXIDE-BORON OXIDE AND TERBIUM AND/OR DYSPROSIUM AS AN ACTIVATOR ELEMENT INCORPORATED THEREIN SHOWS STRONG THERMOLUMINESCENCE AFTER EXPOSURE TO IONIZING RADIATIONS AND THUS IS USEFUL AS A LUMINESCENT MATERIALS FOR RADIOTHERMOLUMINESCENCE DOSIMETERS.
摘要:
A decorative article having a patterned coating film, which is obtained by coating a substrate with a coat of silicate type inorganic paint, applying thereon a coat of a solution of an acid or acidic salt in water and/or an alcohol while the applied coat of paint is in the semi-hardened state, allowing the coated substrate to stand, removing the excess solution by waterwashing, and drying the thus treated substrate to harden the coating.
摘要:
This invention relates to a process for molding a thermosetting resinous composition, which comprises heating a liquid composition comprising an unsaturated alkyd resin, a vinyl chloride resin, a vinyl monomer and/or a reactive plasticizer, and a polymerization initiator at a temperature ranging from 80* to 160*C. to such an extent that the composition is not completely cured, cooling the composition to obtain a non-tacky partially-cured composition of a suitable form, and heating said partially-cured composition at a temperature ranging from 120* to 180*C. to complete the curing.
摘要:
THIS INVENTION RELATES TO A PHOSPHOR FOR INFRARED-TOVISIBLE CONVERSION COMPRISING AS A MAIN INGREDIENT A COMPLEX RARE EARTH FLUORIDE HAVING A GENERAL COMPOSITION EXPRESSED BY THE FORMULAE (Y1-X-YYBXAY)F3,
(LA1-X-YYBXAY)F3
OR (LU1-X-YYBXAY)F3, KRESPECTIVELY, WHEREIN X IS IN THE RANGE OF FROM 0.05 TO 0.5, Y IS IN THE RANGE OF FROM 0.02 TO 0.09 WHEN YTTRIUM FLUORIDE IS USED AS THE HOST MATERIAL, AND FROM 0.001 TO 0.1 WHEN LANTHANUM OR LUTETIUM FLUORIDE IS USED AS THE HOST MEATERIAL, AND A IS AT LEAST ONE MEMBER SELECTED FROM ER AND HO, AND ZINC INCORPORATED IN THE COMPLEX RARE EARTH FLUORIDE, AND A PROCESS FOR THE PREPARATION OF A ZINC-INCORPORATED PHOSPHOR FOR INFRARED-TOVISIBLE CONVERSION, WHICH COMPRISES ADDING ZINC FLUORIDE OR ZINC SILICOFLUORIDE PRIOR TO OR AFTER FORMATION OF SAID COMPLEX RARE EARTH FLUORIDE, AND SUBSEQUENT HEATING.
WHEREIN BNCO IS A BLOCKED NCO GROUP, A IS A RADICAL DERIVED BY REMOVING ALL NCO GROUPS FROM AN ORGANIC DIISOCYANNATE IN COMPOUND I OR AN ORGANIC TRIISOCYANATE IN COMPOUYND II, M IS A RADICAL DERIVED BY REDUCING ALL OH GROUPS AND CARBOXYL AND ITS SALT GROUPS FROM A HIGH MOLECULAR COMPOUND HAVING A MOLECULAR WEIGHT OF ABOUT 350 TO ABOUT 30,000 AND AN ACID VALUE OF ABOUT 30 TO ABOUT 350 AND CONTAINING N OH GROUPS PER MOLECULE AND CARBOXYL GROUPS, ABOUT 40 TO 100 MOLE PERCENT OF WHICH ARE IN THE FORM OF A QUATERNARY AMMONIUM SALT OR ALKALI METAL SALT, N AND M ARE POSITIVE NUMBERS OF NOT LESS THAN 1, WHEREIN (2+N) IN FORMULA I AND (3+N) IN FORMULA 11 ARE BOTH AT LEAST 5, WHEREAS N/2M IN FORMULA 1 AND N/3M IN FORMULA 11 ARE MORE THAN ABOUT 0.5, BUT LESS THAN ABOUT 4.0, Z IS A QUATERNARY AMMONIUM CATION OF ALKALI METAL CATION, (P+Q) IS SUCH A NUMBER THAT A COMPOUND OF (HO)N-M-(COOH)P+Q HAS AN ACID VALUE OF ABOUT 40 TO ABOUT 150, AND Q/(P+Q)X100 IS 100 TO ABOUT 40. THE PRESENT INVENTION, SIMILARLY, RELATES TO A METHOD OF PRODUCING THE AFOREMENTIONED BLOCKEDISOCYANATE POLYMER TYPE COMPOUNDS. THESE COMPOUNDS ARE USEFUL AS COATING AGENTS, ADHESIVE AGENTS AND THE LIKE.