Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
A laminated material comprising surface layers of paper impregnated with amino-formaldehyde resin and inner layers of paper containing a flame retardant material in an amount of 4 to 8 percent by weight of the total laminate and impregnated with phenol-formaldehyde resin, said flame retardant material being a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases, containing in weight percent: ______________________________________
P.sub.2 O.sub.5 total
37 to 63
P.sub.2 O.sub.5 water-soluble
0 to 6
NH.sub.3 3.5 to 11
MO 18 to 43
______________________________________ wherein MO is at least one metallic oxide, said components of the laminated material being contained therein in the following ratio, in weight percent: ______________________________________
paper for surface layers
9 to 26
paper for inner layers 26 to 49
phenol-formaldehyde resin
16 to 30
amino-formaldehyde resin
5 to 26,
______________________________________ said laminated material having a combustibility index in the range of 0.1 to 0.5.
Claim 2
Dependent Claim
152 words
A laminated material comprising surface layers of paper impregnated with amino-formaldehyde resin and inner layers of paper containing a flame retardant material in an amount of 4 to 8 percent by weight of the total laminate and impregnated with phenol-formaldehyde resin, said flame retardant material being a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases, containing in weight percent: ______________________________________
P.sub.2 O.sub.5 total
37 to 63
P.sub.2 O.sub.5 water-soluble
0 to 6
NH.sub.3 3.5 to 11
MO 18 to 43
______________________________________ wherein MO is at least one metallic oxide, said components of the laminated material being contained therein in the following ratio, in weight percent: ______________________________________
paper for surface layers
9 to 26
paper for inner layers 26 to 49
phenol-formaldehyde resin
16 to 30
amino-formaldehyde resin
5 to 26,
______________________________________ said laminated material having a combustibility index in the range of 0.1 to 0.5.
Claim 3
Dependent Claim
28 words
A laminated material as defined in claim 1, wherein the amino-formaldehyde resin content of the impregnated paper for the surface layers of said laminate is 50 weight percent.
Claim 4
Dependent Claim
28 words
A laminated material as defined in claim 1, wherein the phenol-formaldehyde resin content of the impregnated paper for the inner layers of said laminate is 35 weight percent.
Claim 5
Dependent Claim
25 words
A laminated material as defined in claim 1, wherein said flame retardant is a product of interaction of nepheline with phosphoric acid and nitrogen bases.
Claim 6
Dependent Claim
15 words
A laminated material as defined in claim 1, wherein said amino-formaldehyde resin is melamine-formaldehyde resin.
Claim 7
Dependent Claim
25 words
A laminated material as defined in claim 5, wherein said flame retardant is a product of interaction of nepheline with phosphoric acid and nitrogen bases.
Claim 8
Dependent Claim
162 words
A laminated material comprising surface layers of paper impregnated with amino-formaldehyde resin and inner layers of paper containing a flame retardant material in an amount of 4 to 8 percent by weight of the total laminate and impregnated with phenol-formaldehyde resin, said flame retardant material being a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases, containing, in weight percent: ______________________________________
P.sub.2 O.sub.5 total
37 to 63
P.sub.2 O.sub.5 water-soluble
0 to 6
NH.sub.3 3.5 to 11
MO 18 to 43
______________________________________ where MO is at least one metallic oxide, said components of the laminated material being contained therein in the following ratio, in weight percent: ______________________________________
paper for surface layers
9 to 26
paper for inner layers 26 to 49
phenol-formaldehyde resin
16 to 30
amino-formaldehyde resin
5 to 26,
______________________________________ said laminated material having a combustibility index K in the range of 0.1 to 0.5, and a thickness of from 1 to 3 mm.
Claim 9
Dependent Claim
162 words
A laminated material comprising surface layers of paper impregnated with amino-formaldehyde resin and inner layers of paper containing a flame retardant material in an amount of 4 to 8 percent by weight of the total laminate and impregnated with phenol-formaldehyde resin, said flame retardant material being a product of interaction of an aluminum or copper compound with phosphoric acid and nitrogen bases, containing, in weight percent: ______________________________________
P.sub.2 O.sub.5 total
37 to 63
P.sub.2 O.sub.5 water-soluble
0 to 6
NH.sub.3 3.5 to 11
MO 18 to 43
______________________________________ where MO is at least one metallic oxide, said components of the laminated material being contained therein in the following ratio, in weight percent: ______________________________________
paper for surface layers
9 to 26
paper for inner layers 26 to 49
phenol-formaldehyde resin
16 to 30
amino-formaldehyde resin
5 to 26,
______________________________________ said laminated material having a combustibility index K in the range of 0.1 to 0.5, and a thickness of from 1 to 3 mm.