摘要:
An asphalt foam having open cells wherein asphalt mixed with an alkali metal silicate is fixed to the wall of the open cells. The asphalt foam is useful for a joint filler, a vehicle floor material, etc. A method of producing the asphalt foam, which comprises the steps of impregnating an open cell foam sheet (10) with an aqueous mixture (2) consisting of asphalt emulsion and an aqueous solution of an alkali metal silicate, and drying the impregnated foam sheet (10').
摘要:
A composition of matter comprising the reaction product of a bitumen and a fatty oil e.g. asphalt and castor oil, and a process of preparation therefor. The reaction product is combined with a ployhydroxy compound and a polyisocyanate, and allowed to react in the presence of a blowing agent, such as water, to form a foamed polymeric material. A particularly suitable blowing agent comprises a mixture of dibutylphthalate and ethanol, the use of which obviates the necessity for a surfactant in the reaction mix.
摘要:
Composition comprenant le produit de reaction d'un bitume et d'une huile telle que l'huile de ricin, et procede de preparation d'une telle composition. Le produit de la reaction est combine avec un compose polyhydroxy et un polyisocyanate, et laisse reagir en presence d'un agent soufflant, tel que l'eau, pour former une mousse de materiau polymere. Un agent soufflant particulierement approprie, dont l'utilisation supprime la necessite d'un agent de surface dans le melange reactionnel, consiste en un melange de phtalate de dibutyle et d'ethanol.
摘要:
This invention relates to foam insulating products, particularly extruded polystyrene foam, containing asphalt as an infrared attuation and process additives for improving the insulating properties and for reducing the manufacturing cost of the foam products.
摘要:
Latex may be extended with up to about 40 per cent by weight of an emulsion of asphalt, bitumen or coal tar. The extended latex is useful in adhering scrim to carpet or in the manufacture of attached foamed carpet backing.
摘要:
Latex may be extended with up to about 40 per cent by weight of an emulsion of asphalt, bitumen or coal tar. The extended latex is useful in adhering scrim to carpet or in the manufacture of attached foamed carpet backing.