Abstract:
Method for bonding a room temperature vulcanisable silicone rubber to a porous substrate of masonry or wood. The method involves applying to the porous substrate a primer composition comprising a cyclised rubber resin, an organic solvent and a film-forming polyester resin in a proportion of from 0 to 40% by weight based on the weight of cyclised rubber resin. The primed surface is dried and a room temperature vulcanisable silicone rubber composition of specified type then applied.
Abstract:
Stable, aqueous, colloidal synthetic resin compositions comprising: (1) from about 0.1 percent by weight to about 60 percent by weight of a colloidal synthetic resin; and (2) from about 0.01 percent by weight to about 2 percent by weight based on the dry solids weight of the colloidal synthetic resin of a reaction product of a zirconyl complex salt and a high molecular weight, water-soluble, polymeric, polycarboxy-containing thickening resin; said zirconyl complex salt having the formula R3ZrOR''A3 wherein R is ammonium, hydrogen, or an alkali metal; Zr and O are zirconium and oxygen; R'' is ammonium, hydrogen, or an alkali metal; and A is a divalent anion; and methods of applying the synthetic resin compositions to porous absorbent materials and controlling the migration or spreading thereon or penetration thereinto by applying the synthetic resin compositions to the porous absorbent materials and substantially immediately diluting the synthetic resin composition to substantially immediately coagulate and precipitate the synthetic resin composition.
Abstract:
A wood article is surface-treated by first pretreating the same with a condensable or polymerizable hydrophilic liquid monomer, substantially free of any solvent, in order to cause the wood to swell and/or to dissolve constituents of the wood. The resulting pretreated wood article is then directly treated with an impregnating agent, that reacts with such monomer, to form a condensate or polymerizate with the monomer. Finally, the impregnated condensate or polymerizate thus formed in the resulting treated wood is hardened.
Abstract:
A METHOD OF APPLYING CONTINUOUS COATINGS COMPRISING POLY(VINYLIDENE FLUORIDE) WITHOUT BAKING AT HIGH TEMPERATURES COMPRISES APPLYING ON A SUBSTRATE A THIN LAYER OF A COMPOSITION COMPRISING POLY(VINYLIDENE FLUORIDE) AND CERTAIN ORGANIC LIQUIDS, THE LIQUIDS USABLE BEING THOSE HAVING A BOILING POINT BETWEEN ABOUT 125 AND 250*C. IN WHICH POLY(VINYLIDENE FLUORIDE) FORMS A SUBSTANTIALLY CLEAR SOLUTION IN CONCENTRATIONS OF AT LEAST 10 PERCENT BY WEIGHT. THE METHOD CAN BE USED TO "TOUCH-UP" OR REPAIR BAKED POLY(VINYLIDENE FLUORIDE) COATINGS, OR FOR THE APPLICATION OF CONTINUOUS PROTECTIVE COATINGS ON A SUBSTRATE.
Abstract:
A TRAY UNIT INCORPORATING TWO HALF TRAY UNITS AND STRUCTURAL DEVICE FOR DETACHABLY INTERCONNECTING THE UNITS TO FORM A COMPLETE CARRYING TRAY.