Claims
- 1. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is an oxide or a complex oxide containing one or more metals selected from the group consisting of antimony, bismuth, zirconium, molybdenum, tungsten, magnesium, and zinc.
- 2. The fire-retardant polymer composition according to claim 1, wherein the heat-expandable graphite has particle size distribution in which not more than 20% by weight of the particles pass through a 80 mesh sieve.
- 3. The fire-retardant polymer composition according to claim 1, wherein the metal oxide is one or more selected from the group consisting of antimony trioxide, antimony pentoxide, sodium antimonate, zirconium-antimony complex oxide, bismuth trioxide, molybdenum trioxide, molybdate salts, tungsten trioxide, boron oxide, borate salts, excluding borax, aluminum oxide, and magnesium oxide.
- 4. The fire-retardant polymer composition according to claim 3, wherein the heat-expandable graphite has a particle size distribution in which not more than 20% by weight of the particles pass through a 80 mesh sieve.
- 5. The fire-retardant polymer composition according to claim 3, wherein the molybdate salt is used and it is ammonium octamolybdate.
- 6. The fire-retardant polymer composition according to claim 5, wherein the heat-expandable graphite has a particle size distribution in which not more than 20% by weight of the particles pass through a 80 mesh sieve.
- 7. The fire-retardant polymer composition according to claim 3, wherein the borate salt is used and it is zinc borate, barium metaborate, or a mixture thereof.
- 8. The fire-retardant polymer composition according to claim 7, wherein the heat-expandable graphite has a particle size distribution in which not more than 20% by weight of the particles pass through a 80 mesh sieve.
- 9. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is an oxide or a complex oxide containing one or more metals selected from the group consisting of antimony, bismuth, zirconium, molybdenum, tungsten, and zinc, wherein the heat-expandable graphite is surface-treated with one or more coupling agents selected from silane-coupling agents or titanate-coupling agents.
- 10. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is an oxide or a complex oxide containing one or more metals selected from the group consisting of antimony, bismuth, zirconium, molybdenum, tungsten, and zinc, wherein the heat-expandable graphite is mixed preliminarily with magnesium hydroxide and/or aluminum hydroxide.
- 11. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is one or more selected from the group consisting of antimony trioxide, antimony pentoxide, sodium antimonate, zirconium-antimony complex oxide, bismuth trioxide, molybdenum trioxide, molybdate salts, tungsten trioxide and magnesium oxide and wherein the heat-expandable graphite is surface-treated with one or more coupling agents selected from silane-coupling agents or titanate-coupling agents.
- 12. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is ammonium octamolybdate and wherein the heat-expandable graphite is surface-treated with one or more coupling agents selected from silane-coupling agents or titanate-coupling agents.
- 13. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is an oxide or a complex oxide containing one or more metals selected from the group consisting of antimony, bismuth, zirconium, molybdenum, tungsten, and zinc, wherein the heat-expandable graphite has particle size distribution in which not more than 20% by weight of the particles pass through an 80 mesh sieve, and wherein the heat-expandable graphite is surface-treated with one or more coupling agents selected from silane-coupling agents or titanate-coupling agents.
- 14. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is one or more metal oxides selected from the group consisting of antimony trioxide, antimony pentoxide, sodium antimonate, zirconium-antimony complex oxide, bismuth trioxide, molybdenum trioxide, molybdate salts, tungsten trioxide and magnesium oxide and wherein the heat-expandable graphite is preliminarily mixed with magnesium hydroxide and/or aluminum hydroxide.
- 15. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is ammonium octamolybdate and wherein the heat-expandable graphite is preliminarily mixed with magnesium hydroxide and/or aluminum hydroxide.
- 16. A fire-retardant polymer composition which contains no halogen and which consists of the components:
- (A) 100 parts by weight of a polymer,
- (B) 1 to 30 parts by weight of heat-expandable graphite, and
- (C) 1 to 30 parts by weight of a metal oxide,
- wherein the polymer (A) is selected from the polyurethanes; the heat-expandable graphite (B) changes in specific volume thereof on rapid heating from room temperature to 800-1000.degree. C. by 100 ml/g or more; and the metal oxide (C) is an oxide or a complex oxide containing one or more metals selected from the group consisting of antimony, bismuth, zirconium, molybdenum, tungsten, and zinc, wherein the heat-expandable graphite has a particle size distribution in which not more than 20% by weight of the particles pass through an 80 mesh sieve and wherein the heat-expandable graphite is preliminarily mixed with magnesium hydroxide and/or aluminum hydroxide.
Priority Claims (1)
Number |
Date |
Country |
Kind |
7-44375 |
Mar 1995 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/609,902 filed Feb. 29, 1996 now U.S. Pat. No. 5,760,115.
US Referenced Citations (11)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0192888 |
Sep 1986 |
EPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
609902 |
Feb 1996 |
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