US3898076A — Sealing and briquetting finely divided material w…

Claim 1

Independent Claim 191 words

THE METHOD OF BRIQUETTING FINELY DIVIDED SOLID MATERIAL FOR ADDITION TO A MOLTEN METAL BATH COMPRISING HOT MIXING A COPOLYMER OF AN ALKYLENE COMPOUND HAVING TWO TO FOUR CARBON ATOMS AND A VINYL ESTER CHOSEN FROM THE GROUP CONSISTING OF VINYL ACETATE, VINYL FORMATE AND VINYL PROPRIONATE CONTAINING FROM 17 TO 42 PERCENT VINYL ESTER AND SAID COPOLYMER HAVING A MELT INDEX FROM 1.6 TO 500.0, HAVING INHERENT VISCOSITY AT 30*C FROM 0.45 TO 1.05, HAVING A DENSITY IN GM. PER CC. AT 23*C FROM 0.937 TO 0.965, HAVING A TENSILE STRENGTH FROM 250 P.S.I. TO 3,100 P.S.I., HAVING A HARDNESS MEASURED BY SHORE A-2 DUROMETER, 10 SEC., FROM 35 TO 88, HAVING A SOFTENING POINT MEASURED BY RING AND BALL FROM 180*F TO 390*G, AND INSOLUBLE IN AQUEOUS MIXTURES, WITH APPROXIMATELY 125*F TO 160*F MELTING POINT PARAFFIN WAX IN THE PROPORTIONS OF APPROXIMATELY 80 TO 50 PERCENT WAX TO 20 TO 50 PERCENT RESIN UNTIL SAID RESIN IS DISSOLVED, THROUGHLY MIXING A MINOR AMOUNT OF SAID RESIN-WAX MIXTURE WITH AND BINDING SAID FINELY DIVIDED SOLID MATERIAL, AND COMPRESSING THE SAME TO FORM A BRIQUETTE OF SAID FINELY DIVIDED SOLID MATERIAL.

Claim 2

Independent Claim 191 words

THE METHOD OF BRIQUETTING FINELY DIVIDED SOLID MATERIAL FOR ADDITION TO A MOLTEN METAL BATH COMPRISING HOT MIXING A COPOLYMER OF AN ALKYLENE COMPOUND HAVING TWO TO FOUR CARBON ATOMS AND A VINYL ESTER CHOSEN FROM THE GROUP CONSISTING OF VINYL ACETATE, VINYL FORMATE AND VINYL PROPRIONATE CONTAINING FROM 17 TO 42 PERCENT VINYL ESTER AND SAID COPOLYMER HAVING A MELT INDEX FROM 1.6 TO 500.0, HAVING INHERENT VISCOSITY AT 30*C FROM 0.45 TO 1.05, HAVING A DENSITY IN GM. PER CC. AT 23*C FROM 0.937 TO 0.965, HAVING A TENSILE STRENGTH FROM 250 P.S.I. TO 3,100 P.S.I., HAVING A HARDNESS MEASURED BY SHORE A-2 DUROMETER, 10 SEC., FROM 35 TO 88, HAVING A SOFTENING POINT MEASURED BY RING AND BALL FROM 180*F TO 390*G, AND INSOLUBLE IN AQUEOUS MIXTURES, WITH APPROXIMATELY 125*F TO 160*F MELTING POINT PARAFFIN WAX IN THE PROPORTIONS OF APPROXIMATELY 80 TO 50 PERCENT WAX TO 20 TO 50 PERCENT RESIN UNTIL SAID RESIN IS DISSOLVED, THROUGHLY MIXING A MINOR AMOUNT OF SAID RESIN-WAX MIXTURE WITH AND BINDING SAID FINELY DIVIDED SOLID MATERIAL, AND COMPRESSING THE SAME TO FORM A BRIQUETTE OF SAID FINELY DIVIDED SOLID MATERIAL.

Claim 3

Dependent Claim 43 words

The method of claim 1 wherein said thorough mixing includes cooling and finely comminuting said resin-wax mixture; thoroughly mixing said finely comminuted mixture with said finely divided solid material to provide an aggregate; and compressing said aggregate under heavy pressure into a briquette.

Claim 4

Dependent Claim 30 words

The method of claim 2 including a final step of heating said briquette at a temperature of about 150* F to 350* F for about 1 1/4 to 3 hours.

Claim 5

Dependent Claim 40 words

The method of claim 1 wherein said thorough mixing includes thoroughly mixing said resin-wax mixture with a finely divided solid extender material, thoroughly mixing said extended resin-wax mixture with said first-named solid material; and compressing the same into a briquette.

Claim 6

Dependent Claim 59 words

The method of claim 1 wherein said thorough mixing includes thoroughly mixing said hot resin-wax mixture with a finely divided solid extender material; cooling and finely comminuting said extended resin-wax mixture; thoroughly mixing said finely comminuted extended resin-wax mixture with said finely divided solid material to provide an aggregate; and compressing said aggregate under heavy pressure into a briquette.

Claim 7

Dependent Claim 30 words

The method of claim 5 including the final step of heating said briquette at a temperature of about 150* F to 350* F for about 1 1/4 to 3 hours.

Claim 8

Dependent Claim 40 words

The method of claim 1 wherein said solid material includes at least one of the metallic materials chosen from the group consisting of aluminum, electrolytic manganese, ferro-manganese, ferro-vanadium, ferro-titanium, ferro-columbium, ferro-silicon, silico-manganese, calcium, boron, lithium, magnesium, chromium, zirconium and tungsten.

Claim 9

Dependent Claim 31 words

The method of claim 4 wherein said solid extender material includes at least one of the flux materials chosen from the group consisting of sodium carbonate, limestone, lime, cryolite and fluorspar.

Claim 10

Dependent Claim 30 words

The method of claim 4 wherein said solid extender material includes at least one of the nitrogen bearing materials chosen from the group consisting of calcium cyanimide, dicyandiamide and urea.

Claim 11

Dependent Claim 199 words

A briquette for addition to a molten metal bath comprising a major portion of an alloying material other than aluminum finely divided, and from about 0.4 per cent to 10.0 per cent of a binder thoroughly mixed with and firmly bonding said alloying material; said binder comprisinG a copolymer of an alkylene compound having two to four carbon atoms and a vinyl ester chosen from the group consisting of vinyl acetate, vinyl formate and vinyl proprionate containing from 17 to 42 per cent vinyl ester and said copolymer having a melt index from 1.6 to 500.0, having inherent viscosity at 30* C from 0.45 to 1.05, having a density in gm. per cc at 23* C from 0.937 to 0.965, having a tensile strength from 250 p.s.i. to 3100 p.s.i., having a hardness measured by Shore A-2 Durometer, 10 sec., from 35 to 88, having softening point measured by Ring and Ball from 180* F to 390* F, and insoluble in aqueous mixtures; and said resin copolymer dissolved in approximately 125* F to 160* F melting point fully refined paraffin wax in the proportions of approximately 80 to 50 per cent wax to 20 to 50 per cent resin.

Claim 12

Dependent Claim 199 words

A briquette for addition to a molten metal bath comprising a major portion of an alloying material other than aluminum finely divided, and from about 0.4 per cent to 10.0 per cent of a binder thoroughly mixed with and firmly bonding said alloying material; said binder comprisinG a copolymer of an alkylene compound having two to four carbon atoms and a vinyl ester chosen from the group consisting of vinyl acetate, vinyl formate and vinyl proprionate containing from 17 to 42 per cent vinyl ester and said copolymer having a melt index from 1.6 to 500.0, having inherent viscosity at 30* C from 0.45 to 1.05, having a density in gm. per cc at 23* C from 0.937 to 0.965, having a tensile strength from 250 p.s.i. to 3100 p.s.i., having a hardness measured by Shore A-2 Durometer, 10 sec., from 35 to 88, having softening point measured by Ring and Ball from 180* F to 390* F, and insoluble in aqueous mixtures; and said resin copolymer dissolved in approximately 125* F to 160* F melting point fully refined paraffin wax in the proportions of approximately 80 to 50 per cent wax to 20 to 50 per cent resin.

Claim 13

Dependent Claim 21 words

A briquette as defined in claim 10 including a minor portion of finely divided aluminum thoroughly mixed in said alloying material.

Claim 14

Dependent Claim 42 words

A briquette as defined in claim 11 including from 1.0 to 10.0 per cent of a finely divided flux material thoroughly mixed in said alloying material, said flux material chosen from the group consisting of sodium carbonate, limestone, lime, cryolite and fluorspar.

Claim 15

Dependent Claim 93 words

A briquette as defined in claim 10 intended for addition to molten steel wherein said alloying material is a manganese-rich material comprising about 50.0 to 98.0 per cent of said briquetted material, including also about 42.5 to 1.0 per cent of said briquetted material as finely divided aluminum, and including also about 10.0 to 1.0 per cent of said briquetted material as a finely divided flux comprising at least one of the materials chosen from the group consisting of sodium carbonate, limestone, lime, cryolite, fluorspar, borax, sodium fluoride, magnesium carbonate and sodium aluminate.

Claim 16

Dependent Claim 40 words

A briquette as defined in claim 10 including from about 2 per cent to about 18 per cent of an exothermic material chosen from the group consisting of sodium nitrate, potassium nitrate, iron oxide, powdered iron, alumina and sodium carbonate.

Claim 17

Dependent Claim 192 words

A briquette for addition to a molten metal bath comprising a major portion of an alloying material other than aluminum finely divided, and a minor amount of a binder thoroughly mixed with and firmly bonding said alloying material; said binder comprising a copolymer of an alkylene compound having two to four carbon atoms and a vinyl ester chosen from the group consisting of vinyl acetate, vinyl formate and vinyl proprionate containing from 17 to 42 per cent vinyl ester and said copolymer having a melt index from 1.6 to 500.0, having inherent viscosity at 30* C from 0.45 to 1.05 having a density in gm. per cc at 23* C from 0.937 to 0.965, having a tensile strength from 150 p.s.i. to 3,100 p.s.i., having a hardness measured by Shore A-2 Durometer, 10 sec., from 35 to 88, having softening point measured by Ring and Ball from 180* F to 390*F, and insoluble in aqueous mixtures, and said resin copolymer dissolved in approximately 125* F to 160* F melting point fully refined paraffin wax in the proportions of approximately 80 to 50 per cent wax to 20 to 50 per cent resin.

Claim 18

Dependent Claim 192 words

A briquette for addition to a molten metal bath comprising a major portion of an alloying material other than aluminum finely divided, and a minor amount of a binder thoroughly mixed with and firmly bonding said alloying material; said binder comprising a copolymer of an alkylene compound having two to four carbon atoms and a vinyl ester chosen from the group consisting of vinyl acetate, vinyl formate and vinyl proprionate containing from 17 to 42 per cent vinyl ester and said copolymer having a melt index from 1.6 to 500.0, having inherent viscosity at 30* C from 0.45 to 1.05 having a density in gm. per cc at 23* C from 0.937 to 0.965, having a tensile strength from 150 p.s.i. to 3,100 p.s.i., having a hardness measured by Shore A-2 Durometer, 10 sec., from 35 to 88, having softening point measured by Ring and Ball from 180* F to 390*F, and insoluble in aqueous mixtures, and said resin copolymer dissolved in approximately 125* F to 160* F melting point fully refined paraffin wax in the proportions of approximately 80 to 50 per cent wax to 20 to 50 per cent resin.

Claim 19

Dependent Claim 22 words

The briquette of claim 15 including said binder being present in the amount of about 0.4 per cent to 33 per cent.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1978-08-04	1979-02-03	1979-08-05	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1982-08-04	1983-02-03	1983-08-05	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1986-08-04	1987-02-03	1987-08-05	$7700.00	Window Closed / Lapsed

Sealing and briquetting finely divided material with vinyl copolymer and wax

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