Heat resistant and fire-proof synthetic resin material containing inorganic substances and process of producing same
AssigneeIshikawa Giken Kogyo Kabushiki Kaisha
InventorJunichi Kimura
Life of this patent
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Abstract
A heat resistant and fire-proof material comprising: (a) a thermosetting synthetic resin; and (b) a ceramic layer forming component comprising (1) boric acid salts and/or silicic acid salts, and (2) a filler material comprising expanded pearlite having the following characteristics: composition: 5 to 20% by weight of Al.sub.2 O.sub.3, the balance being substantially SiO.sub.2 ; specific gravity: 0.05 to 0.2; melting point: higher than 1000.degree. C.; and thermal conductivity: 0.03 to 0.10 kcal/mh.degree. C. The material has improved fire-proof and thermal insulation properties.
Claims9
A heat resistant and fire-proof material consisting essentially of:
- (a) a thermosetting synthetic resin;
- and
- (b) a ceramic layer forming component consisting essentially of:
- (1) at least one member of the group consisting of boric acid salts and silicic acid salts, and
- (2) a filler material consisting essentially of expanded pearlite, the pearlite having the following characteristics:
- (i) composition:
- from about 5 to about 20% by weight of Al.sub.2 O.sub.3, the balance being substantially SiO.sub.2 ;
- (ii) bulk density:
- from about 0.05 to about 0.2 gm/cm.sup.3 ;
- (iii) melting point:
- higher than about 1000.degree. C. and
- (iv) thermal conductivity:
- from about 0.03 to about 0.10 kcal/mh.degree.C.
A process of making a heat resistant and fire-proof material comprising:
- (a) mixing intimately from about 30 to about 50% by weight of a thermosetting synthetic resin, from about 30 to about 60% by weight of at least one member of the group consisting of boric acid salts and silicic acid salts and from about 5 to about 25% by weight of expanded pearlite having the following characteristics:
- (i) composition:
- from about 5 to about 20% by weight of Al.sub.2 O.sub.3, the balance being substantially SiO.sub.2 ;
- (ii) bulk density:
- from about 0.05 to about 0.2 gm/cm.sup.3 ;
- (iii) melting point:
- higher than about 1000.degree. C.;
- and
- (iv) thermal conductivity:
- from about 0.03 to about 0.10 kcal/mh.degree.C.;
- and
- (b) heating the mixture to a temperature of about 80.degree. C. for a period of about 30 minutes.
Dependencies are inferred from the claim text.