US4088633A — Method of marking paved surfaces and curable two-…

Claim 1

Independent Claim 213 words

A two-part coating system capable of forming a hard coating, said coating system consisting essentially of: (a) in a first part, a pigmented liquid curable vicinal epoxide composition comprising a polyglycidyl ether of a polyhydric phenol, said polyglycidyl ether having an average epoxide functionality greater than 1 but less than 3 and an epoxide equivalent weight greater than 150 but less than 1000; said first part further comprising a glycidyl or polyglycidyl ether of an aliphatic mono-ol or polyol as a viscosity reducing, reactive diluent for said first part; (b) in an active hydrogen-containing, epoxide-reactive second part, a blended co-reactant for said first part, said blended co-reactant consisting essentially of an amine-epoxy adduct and the following difunctional amines: H 2 n--r--nh 2 , and H 2 n--ch 2 --a--ch 2 --nh 2 , wherein R represents a branched alkylene moiety and A represents a divalent cycloaliphatic group; said difunctional amines being blended in a weight ratio ranging from 10:90 to about 90:10; said amine-epoxy adduct comprising 5-75% by weight of a reaction product of the components comprising a said difunctional amine, a diglycidyl ether of a dihydric phenol, and an alkyl-substituted monohydric phenol; said two-part coating system being substantially free of non-reactive, essentially volatile organic liquid diluents and containing a silane adhesion promoter.

Claim 2

Dependent Claim 213 words

A two-part coating system capable of forming a hard coating, said coating system consisting essentially of: (a) in a first part, a pigmented liquid curable vicinal epoxide composition comprising a polyglycidyl ether of a polyhydric phenol, said polyglycidyl ether having an average epoxide functionality greater than 1 but less than 3 and an epoxide equivalent weight greater than 150 but less than 1000; said first part further comprising a glycidyl or polyglycidyl ether of an aliphatic mono-ol or polyol as a viscosity reducing, reactive diluent for said first part; (b) in an active hydrogen-containing, epoxide-reactive second part, a blended co-reactant for said first part, said blended co-reactant consisting essentially of an amine-epoxy adduct and the following difunctional amines: H 2 n--r--nh 2 , and H 2 n--ch 2 --a--ch 2 --nh 2 , wherein R represents a branched alkylene moiety and A represents a divalent cycloaliphatic group; said difunctional amines being blended in a weight ratio ranging from 10:90 to about 90:10; said amine-epoxy adduct comprising 5-75% by weight of a reaction product of the components comprising a said difunctional amine, a diglycidyl ether of a dihydric phenol, and an alkyl-substituted monohydric phenol; said two-part coating system being substantially free of non-reactive, essentially volatile organic liquid diluents and containing a silane adhesion promoter.

Claim 3

Dependent Claim 58 words

A sprayable two-part coating system according to claim 1 wherein said second part consists essentially of: (c) 5-50% by weight of a hexamethylene diamine, said hexamethylene chain having at least one methyl substituent thereon; (d) 5-50% by weight bis(aminomethyl) cyclohexane; (e) 0.5-10% by weight triethanolamine; and (f) substantially the balance of said second part being said reaction product.

Claim 4

Dependent Claim 102 words

A sprayable, blended, active-hydrogen-containing co-curative agent for a curable epoxide, said co-curative agent consisting essentially of: (a) 5-50% by weight tri-methyl-substituted hexamethylene diamine; (b) 5-50% by weight bis(aminomethyl) cyclohexane; (c) 5-50% by weight nonyl phenol; (d) 5-30% by weight of a diglycidyl ether of a dihydric phenol; and (e) 0.5-10% by weight of triethanolamine; a portion of the active hydrogen-bearing components of said cocurative agent having been reacted with said component (d) to produce an epoxide-amine adduct without consuming all of the available active hydrogen in said co-curative agent; said co-curative agent being substantially free of non-reactive, essentially volatile organic liquid diluents.

Claim 5

Dependent Claim 102 words

A sprayable, blended, active-hydrogen-containing co-curative agent for a curable epoxide, said co-curative agent consisting essentially of: (a) 5-50% by weight tri-methyl-substituted hexamethylene diamine; (b) 5-50% by weight bis(aminomethyl) cyclohexane; (c) 5-50% by weight nonyl phenol; (d) 5-30% by weight of a diglycidyl ether of a dihydric phenol; and (e) 0.5-10% by weight of triethanolamine; a portion of the active hydrogen-bearing components of said cocurative agent having been reacted with said component (d) to produce an epoxide-amine adduct without consuming all of the available active hydrogen in said co-curative agent; said co-curative agent being substantially free of non-reactive, essentially volatile organic liquid diluents.

Claim 6

Dependent Claim 51 words

A co-curative agent according to claim 3, said agent consisting essentially of: (a) 22-23% 2,2,4-trimethyl hexamethylene diamine; (b) 20-21% 1,4-cyclohexane-bis(methylamine); (c) 29-30% nonyl phenol; (d) about 22% of the diglycidyl ether of bisphenol A having an epoxide equivalent weight within the range of 180-200; and (e) 5-6% by weight of triethanolamine.

Claim 7

Dependent Claim 22 words

A chemically cured layer comprising the coating system of claim 1, the two parts of which have been mixed together and co-reacted.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-05-08	1981-11-07	1982-05-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-05-08	1985-11-07	1986-05-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-05-08	1989-11-07	1990-05-09	$7700.00	Window Closed / Lapsed

Method of marking paved surfaces and curable two-part epoxy systems therefor

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