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US 12,385,188 B2Granted
Fire retardant paper
AssigneeThermal Ceramics, Inc.
InventorsJensen Plummer, Gary Gayman
Life of this patent
Estimating the term…
Abstract
The invention relates to a fire retardant paper comprising reinforcing fibre, a fire retardant material and a binder system, wherein the binder system comprises a first organic binder and a second organic binder, wherein the first organic binder has a lower glass transition temperature than the second organic binder.
Claims19
A fire retardant paper comprising:
- (A) 30 wt % to 65 wt % refractory fibre;
- (B) 0 wt % to 30 wt % organic fibre;
- (C) 5.0 wt % to 65 wt % fire retardant material;
- (D) 3.0 wt % to less than 20 wt % organic binder, the organic binder comprising a first organic binder and a second organic binder;
- and
- (E) >0 wt % to 4 wt % inorganic binder selected from the group consisting of:
- fumed silica, lithium silicate, sodium silicate, and colloidal silica;
- wherein a total of A+B+C+D+E is >80 wt %, a binder system comprises the organic binder and the inorganic binder, and, the first organic binder has a lower glass transition temperature than the second organic binder, the first organic binder has a glass transition temperature in the range of −100° C. to 45° C. and the second organic binder has a glass transition temperature in the range of 20° C. to 100° C., and the weight ratio of the first organic binder to the second organic binder is in the range of 0.5:1 to 20:1, the fire retardant paper having a flexibility value of less than 152 mm and a 20% compression value of at least 0.09 Mpa and a 60% compression value of at least 0.9 MPa.
5 more elements
A fire retardant paper comprising:
- (A) 30 wt % to 65 wt % refractory fibre;
- (B) 0 wt % to 30 wt % organic fibre;
- (C) 5.0 wt % to 65 wt % fire retardant material;
- (D) 3.0 wt % to less than 20 wt % organic binder, the organic binder comprising a first organic binder and a second organic binder;
- (E) >0 wt % to 4 wt % inorganic binder;
- and
- (F) between 0.5 to 5 wt % of a reactive binder relative to a total weight of the organic binder,
- wherein a total of A+B+C+D+E is >80 wt %, a binder system comprises the organic binder and the inorganic binder, and, the first organic binder has a lower glass transition temperature than the second organic binder, the first organic binder has a glass transition temperature in the range of −100° C. to 45° C. and the second organic binder has a glass transition temperature in the range of 20° C. to 100° C., and the weight ratio of the first organic binder to the second organic binder is in the range of 0.5:1 to 20:1, and wherein the fire retardant material comprises an endothermic material, and wherein the reactive binder has a curing temperature within 20° C. of an activation temperature of the endothermic material.
5 more elements
A fire retardant paper comprising:
- (A) 30 wt % to 65 wt % refractory fibre;
- (B) 0 wt % to 30 wt % organic fibre;
- (C) 5.0 wt % to 65 wt % fire retardant material;
- (D) 3.0 wt % to less than 20 wt % organic binder, the organic binder comprising a first organic binder and a second organic binder;
- and
- (E) >0 wt % to 4 wt % inorganic binder selected from the group consisting of a clay, bentonite, hectorite, kaolinite, montmorillonite, palygorskite, saponite, and sepiolite;
- wherein a total of A+B+C+D+E is >80 wt %, a binder system comprises the organic binder and the inorganic binder, and, the first organic binder has a lower glass transition temperature than the second organic binder, the first organic binder has a glass transition temperature in the range of −100° C. to 45° C. and the second organic binder has a glass transition temperature in the range of 20° C. to 100° C., and the weight ratio of the first organic binder to the second organic binder is in the range of 0.5:1 to 20:1, the fire retardant paper having a flexibility value of less than 152 mm and a 20% compression value of at least 0.09 Mpa and a 60% compression value of at least 0.9 MPa.
4 more elements
Dependencies are inferred from the claim text.