Low modules glass fibers and laminate reinforced with same

Claim 2

A fiberglass reinforced resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber work product, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi.

Claim 3

A fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ wherein, when Al 2 O 3 is present, PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 4

A fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ wherein, when Al 2 O 3 is present, PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 5

The laminate of claim 2 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi.

Claim 6

The laminate of claim 2 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1500° to about 2500° F.

Claim 7

The laminate of claim 2 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1845° to about 2750° F.

Claim 8

A fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ said glass including at least one of the systems selected from the group consisting of SiO 2 -B 2 O 3 -Na 2 O/K 2 O-PbO-Al 2 O 3 and SiO 2 -B 2 O 3 -Na 2 O/K 2 O, wherein, when Al 2 O 3 is present, PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 9

A fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ said glass including at least one of the systems selected from the group consisting of SiO 2 -B 2 O 3 -Na 2 O/K 2 O-PbO-Al 2 O 3 and SiO 2 -B 2 O 3 -Na 2 O/K 2 O, wherein, when Al 2 O 3 is present, PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 10

The laminate of claim 6 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi.

Claim 11

The laminate of claim 6 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1500° to about 2500° F.

Claim 12

The laminate of claim 6 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1845° to about 2750° F.

Claim 13

In combination, a layer of fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement, said glass having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ said glass including at least one of the systems selected from the group consisting of SiO 2 -B 2 O 3 -Na 2 O/K 2 O-PbO-Al 2 O 3 and SiO 2 -B 2 O 3 -Na 2 O/K 2 O, wherein, when Al 2 O 3 is present, PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, with a layer of fired ceramic, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 14

In combination, a layer of fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement, said glass having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ said glass including at least one of the systems selected from the group consisting of SiO 2 -B 2 O 3 -Na 2 O/K 2 O-PbO-Al 2 O 3 and SiO 2 -B 2 O 3 -Na 2 O/K 2 O, wherein, when Al 2 O 3 is present, PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, with a layer of fired ceramic, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 15

The combination of claim 10 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi.

Claim 16

The combination of claim 10 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1500° to about 2500° F.

Claim 17

The combination of claim 10 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1845° to about 2750° F.

Claim 18

In combination, a layer of fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement, said glass having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ wherein, when Al 2 O 3 is present PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, with a layer of fired ceramic, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 19

In combination, a layer of fiberglass reinforced thermoset resin laminate containing and reinforced with from about 40 to about 85 weight percent, based on the weight of the laminate, of a low modulus glass fiber reinforcement, said glass having the following composition: ______________________________________ Wt.% ______________________________________ SiO.sub.2 40-65 B.sub.2 O.sub.3 24-38 Na.sub.2 O + K.sub.2 O 5-20 Li.sub.2 O 0-2 PbO 0-17 CaO 0-2 Al.sub.2 O.sub.3 0-7 Fe.sub.2 O.sub.3 0-2 TiO.sub.2 0-3 F.sub.2 0-2 ______________________________________ wherein, when Al 2 O 3 is present PbO is present, and the ratio of PbO:Al 2 O 3 is from about 1:1 to about 3:1, and, when PbO is absent, so are all constituents other than SiO 2 , B 2 O 3 and Na 2 O/K 2 O, the parts by weight of the foregoing components totalling 100 as they vary within the indicated ranges respectively, said glass having a modulus of elasticity of from about 5.0 to about 6.5 × 10 6 psi, with a layer of fired ceramic, said glass present in said laminate substantially as chemically constituted when fiberized.

Claim 20

The combination of claim 14 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi.

Claim 21

The combination of claim 14 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1500° to about 2500° F.

Claim 22

The combination of claim 14 wherein said glass has a tensile strength of from about 181 to about 268 × 10 3 psi, and a drawing temperature of from about 1845° to about 2750° F.