Flame retardant fibrous material

Claim 2

A flame retardant cellulosic fabric produced by a process which comprises treating a cellulosic fabric with a flame retardant amount of the product produced by reacting (a) element phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol in the presence of a catalytic quantity of a base to produce an organophosphorus composition, where in said process is carried out at a temperature within the range of from about 25* C. to about 200* c., and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groups.

Claim 3

The cellulosic fabric of claim 1 wherein said cellulosic fabric is cotton.

Claim 4

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by reacting (a) elemental phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol; in the presence of a catalytic quantity of a base to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorus composition to hydroxymethyl groups.

Claim 5

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by reacting (a) elemental phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol; in the presence of a catalytic quantity of a base to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorus composition to hydroxymethyl groups.

Claim 6

A fibrous material according to claim 3 wherein said fibrous material is a textile fabric comprising polyester and cellulosic fibers.

Claim 7

A fibrous material according to claim 4 wherein said cellulosic fibers are cotton fibers.

Claim 8

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by reacting (a) elemental phosphorus, (b) ethylene oxide, and (c) methanol; in the presence of dimethylethanol amine as catalyst to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorus composition to hydroxymethyl groups.

Claim 9

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by reacting (a) elemental phosphorus, (b) ethylene oxide, and (c) methanol; in the presence of dimethylethanol amine as catalyst to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorus composition to hydroxymethyl groups.

Claim 10

A fibrous material according to claim 6 wherein said fibrous material is a textile fabric comprising polyester and cellulosic fibers.

Claim 11

A fibrous material according to claim 7 wherein said cellulosic fibers are cotton fibers.

Claim 12

A fibrous material according to claim 6 wherein said fibrous material is a textile fabric comprising cotton fibers.

Claim 13

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by the steps of (1) reacting (a) elemental phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol; in the presence of a catalytic quantity of a base to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C., reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groUps. (2) combining the product of step (1) with a durable press resin selected from the group consisting of durable press resins of the formula: where: X is hydrogen or alkyl containing one to three carbon atoms; Y is O or S; A is a divalent radical of the formula -CHR''-Gn-R''HC-, R'' is hydrogen, alkoxy, alkyl or hydroxy; G is -CH213 , CHR''-, O or S; and wherein n 0 or 1, and where: Q may be alike or different and equals -NH2, and wherein R'''''' hydrogen, alkyl containing one to three carbon atoms, -CH2OX; and X hydrogen or alkyl containing one to three carbon atoms, and (3) heating the combined products of steps (1) and (2) to a temperature of 100* to 500* F.

Claim 14

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by the steps of (1) reacting (a) elemental phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol; in the presence of a catalytic quantity of a base to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C., reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groUps. (2) combining the product of step (1) with a durable press resin selected from the group consisting of durable press resins of the formula: where: X is hydrogen or alkyl containing one to three carbon atoms; Y is O or S; A is a divalent radical of the formula -CHR''-Gn-R''HC-, R'' is hydrogen, alkoxy, alkyl or hydroxy; G is -CH213 , CHR''-, O or S; and wherein n 0 or 1, and where: Q may be alike or different and equals -NH2, and wherein R'''''' hydrogen, alkyl containing one to three carbon atoms, -CH2OX; and X hydrogen or alkyl containing one to three carbon atoms, and (3) heating the combined products of steps (1) and (2) to a temperature of 100* to 500* F.

Claim 15

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by the steps of (1) reacting (a) elemental phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol; in the presence of a catalytic quantity of a base, to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groups, combining the product of step (1) with a durable press resin represented by the formula: where: Q may be alike or different and equals -NH2, and wherein R'''''' hydrogen, alkyl containing one to three carbon atoms, -CH2OX; and X hydrogen or alkyl containing one to three carbon atoms and (3) heating the combined products of steps (1) and (2) to a temperature of 100* to 500* F.

Claim 16

A flame retardant fibrous material produced by a process which comprises treating a fibrous material with a flame retardant amount of the product produced by the steps of (1) reacting (a) elemental phosphorous, (b) ethylene oxide or propylene oxide and (c) methanol; in the presence of a catalytic quantity of a base, to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groups, combining the product of step (1) with a durable press resin represented by the formula: where: Q may be alike or different and equals -NH2, and wherein R'''''' hydrogen, alkyl containing one to three carbon atoms, -CH2OX; and X hydrogen or alkyl containing one to three carbon atoms and (3) heating the combined products of steps (1) and (2) to a temperature of 100* to 500* F.

Claim 17

A fibrous material according to claim 10 wherein said fibrous material is a textile fabric comprising cellulosic fibers.

Claim 18

A fibrous material according to claim 12 wherein said cellulosic fibers are cotton fibers.

Claim 19

A fibrous material according to claim 10 wherein said fibrous material is a textile fabric comprising cellulosic and polyester fibers.

Claim 20

A flame retardant textile fabric comprising cotton and polyester fibers produced by a process which comprises treating a textile fabric containing cotton and polyester fibers with a flame retardant amount of the product produced by the step of (1) reacting (a) elemental phosphorous, (b) propylene oxide, and (c) methanol, in the presence of a base catalyst, to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groups; (2) air oxidizing the resultant product to convert substantially all trivalent phosphorus to pentavalent phosphorus; (3) combining the air oxidized product with a triazine durable press resin containing a methylolated melamine and a urea-based product in aqueous solution and (4) heating the product of step (3) at a temperature of 100* to 500* F.

Claim 21

A flame retardant textile fabric comprising cotton and polyester fibers produced by a process which comprises treating a textile fabric containing cotton and polyester fibers with a flame retardant amount of the product produced by the step of (1) reacting (a) elemental phosphorous, (b) propylene oxide, and (c) methanol, in the presence of a base catalyst, to produce an organophosphorus composition, wherein said process is carried out at a temperature within the range of from about 25* C. to about 200* C. and thereafter reacting said organophosphorus composition with formaldehyde in proportions, at a temperature, and for a period of time sufficient to convert substantially all phosphinous hydrogen in said organophosphorous composition to hydroxymethyl groups; (2) air oxidizing the resultant product to convert substantially all trivalent phosphorus to pentavalent phosphorus; (3) combining the air oxidized product with a triazine durable press resin containing a methylolated melamine and a urea-based product in aqueous solution and (4) heating the product of step (3) at a temperature of 100* to 500* F.

Claim 22

A textile fabric according to claim 15 wherein the durable press resin is hexamethoxymelamine.

Claim 23

A textile fabric according to claim 15 wherein the durable presS resin is N,N''-dimethoxymethylurea.

Claim 24

A fibrous material according to claim 3 wherein said fibrous material is wood.

Claim 25

A fibrous material according to claim 3 wherein said fibrous material comprises rayon.