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US 8,912,259 B2Granted
Formulated benzoxazine based system for transportation applications
AssigneeHuntsman Advanced Materials Americas LLC
InventorJames Hoge
Life of this patent
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Abstract
The present disclosure provides a halogen-free thermosetting composition including a benzoxazine compound, a monobenzoxazine monomer, and a naphthalene epoxy. The halogen-free thermosetting composition is especially suited for use in aerospace, automobile, rail and marine applications.
Claims9
A halogen-free thermosetting composition comprising:
- (a) 15-30 parts by weight of a benzoxazine compound of the formula (I)
- wherein each R is, independently from one another, allyl, unsubstituted or substituted phenyl, unsubstituted or substituted C1-C8 alkyl or unsubstituted or substituted C3-C3 cycloalkyl;
- (b) a monobenzoxazine monomer of the formula (II)
- wherein X is monophenol, a C1-C8 alkyl group or a C3-C8 cycloalkyl group;
- and
- (c) a naphthalene epoxy
- where parts by weight are based on 100 parts by weight of the halogen-free thermosetting composition and wherein the halogen-free thermosetting composition, upon heating at a temperature greater than 90° C. to less than 150° C., is thermally cured.
4 more elements
A halogen-free thermosetting composition comprising:
- (a) 15-30 parts by weight of a benzoxazine compound of the formula (I)
- wherein each R is, independently from one another, allyl, unsubstituted or substituted phenyl, unsubstituted or substituted C1-C8-alkyl or unsubstituted or substituted C3-C8 cycloalkyl;
- (b) 5-50 parts by weight of a monobenzoxazine monomer of the formula (II)
- wherein X is monophenol, a C1-C8 alkyl group or a C3-C8 cycloalkyl group;
- and
- (c) 10-20 parts by weight of a naphthalene epoxy
- where parts by weight are based on 100 parts by weight of the halogen-free thermosetting composition, and wherein the halogen-free thermosetting composition, upon curing at a temperature greater than 90° C. to less than 150° C., has a glass transition temperature greater than 160° C.
4 more elements
A halogen-free thermosetting composition produced according to a method comprising mixing together:
- (a) 15-30 parts by weight of a benzoxazine monomer of the formula (I)
- wherein each R is, independently from one another, allyl, unsubstituted or substituted phenyl, unsubstituted or substituted C1-C8 alkyl or unsubstituted or substituted C3-C8 cycloalkyl;
- (b) 5-50 parts by weigh of a monobenzoxazine monomer of the formula (II)
- wherein X is monophenol, a C1-C8 alkyl group or a C3-C8 cycloalkyl group;
- and
- (c) 10-20 parts by weight of a naphthalene epoxy where parts by weight are based on 100 parts by weight of the halogen-free thermosetting composition.
3 more elements
Dependencies are inferred from the claim text.