Claims
- 1. A transparent composite having resistance to intense heat, comprising:
- a transparent layer of a reaction product of a blend having
- (a) from about 80 to about 100 parts by weight of an epoxy resin;
- (b) from about 5 to about 30 parts by weight of a boroxine having the formula: ##STR12## where R is a compound having from 1 to 18 carbon atoms, and (c) from about 1 part to about 40 parts by weight of an organic phosphorus compound having the following formula: ##STR13## where R.sub.3 is selected from the group consisting of hydrocarbon radicals having from 1 to 24 carbon atoms, halo-substituted organic radicals having from 1 to 24 carbon atoms, and multihalo-substituted organic radicals having from 1 to 24 carbon atoms; and where R.sub.3 may be the same or different radicals;
- where R.sub.4 is selected from the group consisting of all the radicals of R.sub.3, oxygen, and radicals of the formula: --O--R.sub.6, where R.sub.6 is selected from the group consisting of all the radicals of R.sub.3, organo-phosphorus polymeric radicals, and organo-phosphorus esters;
- where R.sub.5 is selected from the group consisting of hydrogen, hydroxyl, oxygen, sulfur, halogens or no radical at all;
- where Z is selected from the group consisting of oxygen, sulfur, or no radical at all; and
- wherein said transparent blend is contiguously contacting at least one layer of a composition resistant to moisture permeation;
- said composition having about 100 parts by weight of a mercaptan resin having the following formula: ##STR14## where R is an aliphatic hydrocarbon having from 1 to 18 carbon atoms and where n is 1 or 2;
- (a) from about 40 to about 250 parts by weight of an epoxy resin; and
- (b) from about 0.5 parts by weight to about 4.0 parts by weight of a silane selected from the group consisting of: N-aminoakyl-aminoalkyl-trialkoxysilanes of the formula: ##STR15## wherein R.sub.1 is an alkylene having 1-6 carbon atoms and R.sub.2 is an alkyl, having 1-6 carbon atoms, and amino-alkyltrialkoxysilanes of the formula: ##STR16## wherein R.sub.1 and R.sub.2 are as defined above, and combinations thereof.
CROSS-REFERENCE
This application is a divisional of my copending application bearing Ser. No. 232,054, filed Feb. 5, 1981, for "TRANSPARENCIES PRODUCED FROM EPOXY RESINS CURED WITH ADDUCTS OF BOROXINES AND INTERLAYERS OF MERCAPTAN RESINS", which issued as U.S. Pat. No. 4,343,928 on Aug. 10, 1982, which in turn is a continuation-in-part application of an application filed on Aug. 28, 1979, bearing Ser. No. 70,390, now U.S. Pat. No. 4,294,886, issued Oct. 13, 1981. This application is also a continuation-in-part application of an application filed on Nov. 6, 1980, bearing Ser. No. 204,424, now U.S. Pat. No. 4,352,848, issued Oct. 5,1982. Application Ser. No. 204,424 is a continuation-in-part of application Ser. No. 070,390.
US Referenced Citations (6)
Related Publications (1)
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204424 |
Nov 1980 |
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Divisions (1)
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232054 |
Feb 1981 |
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Continuation in Parts (2)
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070390 |
Aug 1979 |
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070390 |
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