US4343891A — Fixing of tetra (hydrocarbyl) borate salt imaging…

Claim 1

Independent Claim 75 words

A method for desensitizing a radiation sensitive imaging system comprising a dye and a tetra(hydrocarbyl)borate in a binder which method comprises converting the tetra(hydrocarbyl)borate to a compound having fewer than four carbon-to-boron bonds after said radiation sensitive imaging system has been imagewise exposed to radiation, said converting being effected by introducing into reactive association with said borate a material selected from the group consisting of acids, aldehydes, peroxides, quinones, iodine or readily reducible metal ions.

Claim 2

Independent Claim 75 words

A method for desensitizing a radiation sensitive imaging system comprising a dye and a tetra(hydrocarbyl)borate in a binder which method comprises converting the tetra(hydrocarbyl)borate to a compound having fewer than four carbon-to-boron bonds after said radiation sensitive imaging system has been imagewise exposed to radiation, said converting being effected by introducing into reactive association with said borate a material selected from the group consisting of acids, aldehydes, peroxides, quinones, iodine or readily reducible metal ions.

Claim 3

Independent Claim 42 words

A method for forming an image which includes the step of desensitizing a radiation sensitive imaging system comprising a dye and a a tetra(hydrocarbyl)borate in a binder, which method comprises converting the tetra(hydrocarbyl)borate to a compound having fewer than four carbon-to-boron bonds.

Claim 4

Independent Claim 42 words

A method for forming an image which includes the step of desensitizing a radiation sensitive imaging system comprising a dye and a a tetra(hydrocarbyl)borate in a binder, which method comprises converting the tetra(hydrocarbyl)borate to a compound having fewer than four carbon-to-boron bonds.

Claim 5

Independent Claim 45 words

A method for desensitizing a radiation sensitive imaging system comprising a dye and a tetra(hydrocarbyl)borate in a binder which method comprises converting the tetra(hydrocarbyl)borate to a compound having fewer than four carbon-to-boron bonds after said radiation sensitive imaging system has been imagewise exposed to radiation.

Claim 6

Independent Claim 45 words

A method for desensitizing a radiation sensitive imaging system comprising a dye and a tetra(hydrocarbyl)borate in a binder which method comprises converting the tetra(hydrocarbyl)borate to a compound having fewer than four carbon-to-boron bonds after said radiation sensitive imaging system has been imagewise exposed to radiation.

Claim 7

Dependent Claim 20 words

The method of claim 1 wherein said conversion is effected by introducing an acid into reactive association with said tetra(hydrocarbyl)borate.

Claim 8

Dependent Claim 29 words

The method of claim 4 wherein said acid is selected from the group consisting of inorganic acids, carboxylic acids, aliphatic sulfonic acids, aliphatic sulfonylic acids, and fluorinated carboxylic acids.

Claim 9

Dependent Claim 20 words

The method of claim 1 wherein said conversion is effected by introducing an aldehyde into reactive association with said tetra(hydrocarbyl)borate.

Claim 10

Dependent Claim 20 words

The method of claim 1 wherein said conversion is effected by introducing a peroxide into reactive association with said tetra(hydrocarbyl)borate.

Claim 11

Dependent Claim 20 words

The method of claim 1 wherein said conversion is effected by introducing a quinone into reactive association with said tetra(hydrocarbyl)borate.

Claim 12

Dependent Claim 19 words

The method of claim 1 wherein said conversion is effected by introducing iodine into reactive association with said tetra(hydrocarbyl)borate.

Claim 13

Dependent Claim 22 words

The method of claim 1 wherein said conversion is effected by introducing readily reducible metal ions into reactive association with said tetra(hydrocarbyl)borate.

Claim 14

Independent Claim 14 words

The method of claims 1 wherein said tetra(hydrocarbyl)borate is associated with a cationic dye.

Claim 15

Independent Claim 64 words

The method of claims 3, 4, 5, 6, 7, 8, 10, 2 or 1 wherein said tetra(hydrocarbyl)borate has the structural formula: ##STR18## wherein R 1 , R 2 , R 3 and R 4 are independently groups bonded to the boron from carbon atoms, and X + is any cation except those which break at least one carbon to boron bond of the borate.

Claim 16

Dependent Claim 77 words

The method of claim 11 wherein said tetra(hydrocarbyl)borate has the formula: ##STR19## wherein R 1 , R 2 , R 3 and R 4 are independently selected from groups bonded to the boron from carbon atoms, X + is any cation except those which break at least one carbon-to-boron bond of the borate, and said desensitizing is performed after said radiation sensitive imaging system has been image-wise exposed to radiation to which said imaging system is sensitive.

Claim 17

Dependent Claim 43 words

The method of claim 12 wherein R 1 , R 2 , R 3 and R 4 are independently selected from the group consisting of alkyl groups, aryl groups, alkaryl groups, arylalkyl groups, alkenyl groups, alkynyl groups, cyano, heterocyclic groups, and alkyl-heterocyclic groups.

Claim 18

Dependent Claim 43 words

The method of claim 13 wherein R 1 , R 2 , R 3 and R 4 are independently selected from the group consisting of alkyl groups, aryl groups, alkaryl groups, arylalkyl groups, alkenyl groups, alkynyl groups, cyano, heterocyclic groups, and alkyl-heterocyclic groups.

Claim 19

Dependent Claim 25 words

The method of claim 14 wherein R 1 , R 2 , R 3 and R 4 have no more than 20 carbon atoms each.

Claim 20

Dependent Claim 25 words

The method of claim 15 wherein R 1 , R 2 , R 3 and R 4 have no more than 20 carbon atoms each.

Claim 21

Dependent Claim 12 words

The method of claim 16 wherein X + is a cationic dye.

Claim 22

Dependent Claim 12 words

The method of claim 17 wherein X + is a cationic dye.

Claim 23

Independent Claim 36 words

The method of claims 13, 14, 15, 16, 17, 18 or 19 wherein R 1 , R 2 , R 3 , and R 4 are selected from the group consisting of alkyl and allyl groups.

Claim 24

Independent Claim 46 words

The method of claims 3, 15, 16, 17, 18, or 19 wherein said dye is selected from the class consisting of methines, triarylmethanes, cyanines, ketomethylenes, styryls, xanthines, azines, carbocyanines, butadienyls, and azomethines and the hydrocarbyl groups on said borate are selected from alkyl and allyl groups.

Claim 25

Dependent Claim 14 words

The method of claim 2 wherein said tetra(hydrocarbyl)borate is associated with a cationic dye.

Claim 26

Dependent Claim 54 words

The method of claim 22 wherein said tetra(hydrocarbyl)borate has the formula: ##STR20## wherein R 1 , R 2 , R 3 and R 4 are independently selected from groups bonded to the boron from carbon atoms, and X + is any cation except those which break at least one carbon-to-boron bond of the borate.

Claim 27

Dependent Claim 43 words

The method of claim 23 wherein R 1 , R 2 , R 3 and R 4 are independently selected from the group consisting of alkyl groups, aryl groups, alkaryl groups, arylalkyl groups, alkenyl groups, alkynyl groups, cyano, heterocyclic groups and alkyl-heterocyclic groups.

Claim 28

Dependent Claim 25 words

The method of claim 24 wherein R 1 , R 2 , R 3 and R 4 have no more than 20 carbon atoms each.

Claim 29

Independent Claim 30 words

The method of claims 23 and 25 wherein R 1 , R 2 , R 3 and R 4 are selected from the group consisting of alkyl and alkyl groups.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1985-08-09	1986-02-08	1986-08-10	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1989-08-09	1990-02-08	1990-08-10	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1993-08-09	1994-02-08	1994-08-10	$7700.00	Window Closed / Lapsed

Fixing of tetra (hydrocarbyl) borate salt imaging systems

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