US4018742A — Imide-ring containing polyester and wire enamel c…

Claim 1

Independent Claim 131 words

A polyester having imide rings in the molecule comprising the reaction product of 1. a polyhydric alcohol component comprising about 5 to 80% by weight of an imide ring containing diol represented by the following Formula (I) ##STR11## wherein Ar 1 represents a trivalent aromatic group; Ar 2 represents a divalent aromatic group; and m and n each represents an integer of 1 to 6; with the diol being the reaction product of 2 moles of an aromatic tricarboxylic acid anhydride of the following formula (II) ##STR12## wherein Ar 1 has the same meaning as above; with 1 mole of a diamine of the following formula (III) h.sub.2 n -- ar.sub.2 -- NH.sub.2 (III) wherein Ar 2 has the same meaning as above, in the presence of ethylene carbonate; and; 2.

Claim 2

Dependent Claim 131 words

A polyester having imide rings in the molecule comprising the reaction product of 1. a polyhydric alcohol component comprising about 5 to 80% by weight of an imide ring containing diol represented by the following Formula (I) ##STR11## wherein Ar 1 represents a trivalent aromatic group; Ar 2 represents a divalent aromatic group; and m and n each represents an integer of 1 to 6; with the diol being the reaction product of 2 moles of an aromatic tricarboxylic acid anhydride of the following formula (II) ##STR12## wherein Ar 1 has the same meaning as above; with 1 mole of a diamine of the following formula (III) h.sub.2 n -- ar.sub.2 -- NH.sub.2 (III) wherein Ar 2 has the same meaning as above, in the presence of ethylene carbonate; and; 2.

Claim 3

Dependent Claim 39 words

a polycarboxylic acid component comprising at least one of a polycarboxylic acid and a lower alkyl ester thereof; wherein the ratio of the polyhydric alcohol component (1) to the polycarboxylic acid component (2), as expressed by the --OH/--COOH molar

Claim 4

Dependent Claim 39 words

a polycarboxylic acid component comprising at least one of a polycarboxylic acid and a lower alkyl ester thereof; wherein the ratio of the polyhydric alcohol component (1) to the polycarboxylic acid component (2), as expressed by the --OH/--COOH molar

Claim 5

Dependent Claim 40 words

ratio, is about 1.2 to 1.6. 2. The polyester as claimed in claim 1, wherein Ar 1 is selected from the group consisting of ##STR13## wherein R 1 represents --CH 2 --, --O--, --S--, --SO 2 --, --CO-- or ##STR14##

Claim 6

Dependent Claim 52 words

The polyester as claimed in claim 1, wherein Ar 2 is selected from the group consisting of ##STR15## wherein R 2 represents --H, --Cl, --Br, --OCH 3 , --CH 3 or --C 2 H 5 : and ##STR16## wherein R 3 represents --CH 2 --, --O--, --S--, --SO 2 --, --C0--, ##STR17##

Claim 7

Dependent Claim 63 words

The polyester as claimed in claim 1, in which said aromatic tricarboxylic acid anhydride (II) is selected from the group consisting of trimellitic anhydride, hemimellitic anhydride, 3,4,3' (or 3,4,4')-diphenyltricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylmethanetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylethertricarboxylic anhydride, 3,4,3' )-diphenylslfidetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylsulfonetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylketonetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylpropanetricarboxylic anhydride, 2,3,6 (or 2,3,5 or 1,2,4)-naphthalenetricarboxylic anhydride, and a mixture thereof.

Claim 8

Dependent Claim 42 words

The polyester as claimed in claim 1, in which said diamine (III) is selected from the group consisting of m-xylylenediamine, p-xylylenediamine, m-phenylenediamine, p-phenylenediamine, benzidine, 3,3'-dimethoxybenzidine, 3,3'-dichlorobenzidine, 3,3'-dimethylbenzidine, 1,5-diaminonaphthalene, 2,6-diaminonaphthalene, 4,4'-diaminodiphenylmethane, 4,4'(or 3,4')-diaminodiphenylether, 4,4'-diaminodiphenylsulfide, 3,3'(or 4,4')-diaminodiphenylsulfone, 4,4'-diaminodiphenylketone, 4,4'-diaminodiphenylpropane, 3,4'-diaminobenzanilide and a mixture thereof.

Claim 9

Dependent Claim 43 words

The polyester as claimed in claim 1, in which said polhydric alcohol component includes at least one polyhydric alcohol selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, neopentyl glycol, glycerin, trimethylol propane, tris(2-hydroxyethyl)isocyanurate and pentaerythritol.

Claim 10

Dependent Claim 46 words

The polyester as claimed in claim 1, in which said polycarboxylic acid and lower alkyl ester thereof are selected from the group consisting of isophthalic acid, terephthalic acid, 1,4-naphthalene dicarboxylic acid, 1,5-naphthalene dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, dimethyl isophthalate, dimethyl terephthalate, diethyl isophthalate, and diethyl terephthalate.

Claim 11

Dependent Claim 134 words

A wire enamel containing a polyester having imide rings in the molecule comprising the reaction product of 1. a polyhydric alcohol component comprising about 5 to 80% by weight of an imide ring containing diol represented by the following formula (I) ##STR18## wherein Ar 1 represents a trivalent aromatic group; Ar 2 represents a divalent aromatic group; and m and n each represents an integer of 1 to 6; with the diol being the reaction product of 2 moles of an aromatic tricarboxylic acid anhydride of the following formula (II) ##STR19## wherein Ar 1 has the same meaning as above; with 1 mole of a diamine of the following formula (III) h.sub.2 n -- ar.sub.2 -- NH.sub.2 (III) wherein Ar 2 has the same meaning as above, in the presence of ethylene carbonate; and

Claim 12

Dependent Claim 134 words

A wire enamel containing a polyester having imide rings in the molecule comprising the reaction product of 1. a polyhydric alcohol component comprising about 5 to 80% by weight of an imide ring containing diol represented by the following formula (I) ##STR18## wherein Ar 1 represents a trivalent aromatic group; Ar 2 represents a divalent aromatic group; and m and n each represents an integer of 1 to 6; with the diol being the reaction product of 2 moles of an aromatic tricarboxylic acid anhydride of the following formula (II) ##STR19## wherein Ar 1 has the same meaning as above; with 1 mole of a diamine of the following formula (III) h.sub.2 n -- ar.sub.2 -- NH.sub.2 (III) wherein Ar 2 has the same meaning as above, in the presence of ethylene carbonate; and

Claim 13

Dependent Claim 45 words

a polycarboxylic acid component comprising at least one of a polycarboxylic acid and a lower alkyl ester thereof wherein the ratio of the polyhydric alcohol component (1) to the polycarboxylic acid component (2), as expressed by the --OH/--COOH molar ratio, is about 1.2 to 1.6.

Claim 14

Dependent Claim 45 words

a polycarboxylic acid component comprising at least one of a polycarboxylic acid and a lower alkyl ester thereof wherein the ratio of the polyhydric alcohol component (1) to the polycarboxylic acid component (2), as expressed by the --OH/--COOH molar ratio, is about 1.2 to 1.6.

Claim 15

Dependent Claim 34 words

The wire enamel as claimed in claim 8, wherein Ar 1 is selected from the group consisting of ##STR20## wherein R 1 represents --CH 2 --, --O--, --S--, --SO 2 --, --CO-- or ##STR21##

Claim 16

Dependent Claim 51 words

The wire enamel as claimed in claim 8, wherein Ar 2 is selected from the group consisting of ##STR22## wherein R 2 represents --H, --Cl, --Br, --OCH 3 , or --C 2 H 5 : and ##STR23## wherein R 3 represents --CH 2 --, --O--, --S--, --SO 2 --, --CO--, ##STR24##

Claim 17

Dependent Claim 65 words

The wire enamel as claimed in claim 8, in which said aromatic tricarboxylic acid anhydride (II) is selected from the group consisting of trimellitic anhydride, hemimellitic anhydride, 3,4,3' (or 3,4,4')-diphenyltricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylmethanetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylethertricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylsulfidetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylsulfonetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylketonetricarboxylic anhydride, 3,4,3' (or 3,4,4')-diphenylpropanetricarboxylic anhydride, 2,3,6 (or 2,3,5 or 1,2,4)-naphthalenetricarboxylic anhydride, and a mixture thereof.

Claim 18

Dependent Claim 43 words

The wire enamel as claimed in claim 8, in which said diamine (III) is selected from the group consisting of m-xylylenediamine, p-xylylenediamine, m-phenylenediamine, p-phenylenediamine, benzidine, 3,3'-dimethoxybenzidine, 3,3'dichlorobenzidine, 3,3'-dimethylbenzidine, 1,5-diaminonaphthalene, 2,6-diaminonaphthalene, 4,4'-diaminodiphenylmethane, 4,4'(or 3,4')-diaminodiphenylether, 4,4'-diaminodiphenylsulfide, 3,3'-(or 4,4')-diaminodiphenylsulfone, 4,4'-diaminodiphenylketone, 4,4'-diaminodiphenylpropane, 3,4'-diaminobenzanilide and a mixture thereof.

Claim 19

Dependent Claim 44 words

The wire enamel as claimed in claim 8, in which said polyhydric alcohol component includes at least one polyhydric alcohol selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, neopentyl glycol, glycerin, trimethylol propane, tris(2-hydroxyethyl)isocyanurate and pentaerythritol.

Claim 20

Dependent Claim 47 words

The wire enamel as claimed in claim 8, in which said polycarboxylic acid and lower alkyl ester thereof are selected from the group consisting of isophthalic acid, terephthalic acid, 1,4-naphthalene dicarboxylic acid, 1,5-naphthalene dicarboxylic acid, 2,6-naphthalene dicarboxylic acid, dimethyl isophthalate, dimethyl terephthalate, diethyl isophthalate, and diethyl terephthalate.

Claim 21

Dependent Claim 29 words

The wire enamel as claimed in claim 8, including at least one of a drier component, a hardening agent, a blocked polyisocyanate, a phenol-formaldehyde resin and an epoxy resin.

Claim 22

Dependent Claim 23 words

The wire enamel as claimed in claim 15, in which said drier components is iron, manganese, cobalt, zinc or lead naphthenate or octenoate.

Claim 23

Dependent Claim 19 words

The wire enamel as claimed in claim 15, in which said hardening agent is tetrapropyl titanate or tetrabutyl titanate.

Claim 24

Dependent Claim 24 words

The polyester as claimed in claim 1, wherein said imide ring containing diol comprises 30 to 60% by weight of said polyhydric alcohol component.

Claim 25

Dependent Claim 25 words

The wire enamel as claimed in claim 8, wherein said imide ring containing diol comprises 30 to 60% by weight of said polyhydric alcohol component.

Claim 26

Dependent Claim 15 words

The polyester as claimed in claim 1, wherein m and/or n is 2 to 4.

Claim 27

Dependent Claim 16 words

The wire enamel as claimed in claim 8, wherein m and/or n is 2 to 4.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-04-18	1980-10-18	1981-04-19	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-04-18	1984-10-18	1985-04-19	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-04-18	1988-10-18	1989-04-19	$7700.00	Window Closed / Lapsed

Imide-ring containing polyester and wire enamel containing same

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