US5609969A — Static dissipative electronic packaging article

Claim 1

Independent Claim 96 words

An antistatic electronic packaging article comprising an insulative polymer overcoated with a single layer antistatic/protective coating comprising: a) from about 8 mg/m 2 to about 70 mg/m 2 vanadium pentoxide, b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality selected from the group consisting of sulfopolymers and addition polymers, and c) from about 210 mg/m 2 to about 842 mg/m 2 of a nonsulfonated protective topical binder, wherein said antistatic coating has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5.

Claim 2

Dependent Claim 96 words

An antistatic electronic packaging article comprising an insulative polymer overcoated with a single layer antistatic/protective coating comprising: a) from about 8 mg/m 2 to about 70 mg/m 2 vanadium pentoxide, b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality selected from the group consisting of sulfopolymers and addition polymers, and c) from about 210 mg/m 2 to about 842 mg/m 2 of a nonsulfonated protective topical binder, wherein said antistatic coating has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5.

Claim 3

Dependent Claim 61 words

An antistatic electronic packaging article according to claim 1 wherein said addition polymer is a terpolymer comprising from about 35% to about 96% by weight vinylidene chloride, from about 3.5% to about 64.5% by weight of an ethylenically unsaturated ester, and from about 0.5% to about 25% by weight of a monomer selected from itaconic acid, acrylic acid and methacrylic acid.

Claim 4

Dependent Claim 25 words

An antistatic electronic packaging article according to claim 1 wherein said sulfopolymer is selected from the group consisting of sulfopolyols, sulfopolyesters, and ethylenically unsaturated sulfopolymers.

Claim 5

Dependent Claim 18 words

An antistatic electronic packaging article according to claim 1 wherein said nonsulfonated protective topical binder is a polyurethane.

Claim 6

Dependent Claim 29 words

An antistatic electronic packaging article according to claim 4 wherein said polyurethane is selected from the group consisting of epoxy crosslinked polyurethanes; aliphatic polycarbonate/polyurethane blends and silane terminated polyurethanes.

Claim 7

Dependent Claim 110 words

An antistatic electronic packaging article comprising an insulative polymer overcoated with a multiple layer antistatic/protective coating system comprising: a) an antistatic coating comprising from about 8% by weight to about 60% by weight vanadium pentoxide, and b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality, selected from the group consisting of sulfopolymers, and addition polymers, wherein said antistatic coating has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5, said antistatic coating being overcoated with a protective coating comprising from about 210 mg/m 2 to about 842 mg/m 2 of a nonsulfonated protective topical binder.

Claim 8

Dependent Claim 110 words

An antistatic electronic packaging article comprising an insulative polymer overcoated with a multiple layer antistatic/protective coating system comprising: a) an antistatic coating comprising from about 8% by weight to about 60% by weight vanadium pentoxide, and b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality, selected from the group consisting of sulfopolymers, and addition polymers, wherein said antistatic coating has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5, said antistatic coating being overcoated with a protective coating comprising from about 210 mg/m 2 to about 842 mg/m 2 of a nonsulfonated protective topical binder.

Claim 9

Dependent Claim 61 words

An antistatic electronic packaging article according to claim 6 wherein said addition polymer is a terpolymer comprising from about 35% to about 96% by weight vinylidene chloride, from about 3.5% to about 64.5% by weight of an ethylenically unsaturated ester, and from about 0.5% to about 25% by weight of a monomer selected from itaconic acid, acrylic acid and methacrylic acid.

Claim 10

Dependent Claim 26 words

An antistatic electronic packaging article according to claim 7 wherein said sulfopolymer is selected from the group consisting of sulfopolyols, sulfopolyesters, sulfopolyureas, and ethylenically unsaturated sulfopolymers.

Claim 11

Dependent Claim 15 words

An antistatic electronic packaging article according to claim 8 wherein said sulfopolymer is a sulfopolyester.

Claim 12

Dependent Claim 18 words

An antistatic electronic packaging article according to claim 6 wherein said nonsulfonated protective topical binder is a polyurethane.

Claim 13

Dependent Claim 29 words

An antistatic electronic packaging article according to claim 10 wherein said polyurethane is selected from the group consisting of epoxy crosslinked polyurethanes; aliphatic polycarbonate/polyurethane blends and silane terminated polyurethanes.

Claim 14

Dependent Claim 46 words

An antistatic electronic packaging article according to claim 1 wherein said article is selected from the group consisting of binding straps, shipping tubes, magazines, discrete carriers, pocket tapes, lids, antistatic cables for electronic devices, die-level transport media for IC wafer carriers, wafer boats, and die-level trays.

Claim 15

Dependent Claim 46 words

An antistatic electronic packaging article according to claim 6 wherein said article is selected from the group consisting of binding straps, shipping tubes, magazines, discrete carriers, pocket tape, lids, antistatic cables for electronic devices, die-level transport media for IC wafer carriers, wafer boats, and die-level trays.

Claim 16

Dependent Claim 26 words

An antistatic electronic packaging article according to claim 1 wherein said insulative resin was first coated with said antistatic/protective coating and then formed into said article.

Claim 17

Dependent Claim 28 words

An antistatic electronic packaging article according to claim 1 wherein said insulative resin was first formed into said article, said article then being coated with said antistatic/protective coating.

Claim 18

Dependent Claim 26 words

An antistatic electronic packaging article according to claim 6 wherein said insulative resin was first coated with said antistatic/protective coating and then formed into said article.

Claim 19

Dependent Claim 28 words

An antistatic electronic packaging article according to claim 6 wherein said insulative resin was first formed into said article, said article then being coated with said antistatic/protective coating.

Claim 20

Dependent Claim 92 words

A single self-supporting antistatic/protective film, said film being formed from a) from about 8 mg/m 2 to about 70 mg/m 2 vanadium pentoxide, b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality selected from the group consisting of sulfopolymers and addition polymers, and c) from about 210 mg/m 2 to about 842 mg/m 2 of a protective comprising a nonsulfonated protective topical binder, wherein said antistatic coating has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5.

Claim 21

Dependent Claim 92 words

A single self-supporting antistatic/protective film, said film being formed from a) from about 8 mg/m 2 to about 70 mg/m 2 vanadium pentoxide, b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality selected from the group consisting of sulfopolymers and addition polymers, and c) from about 210 mg/m 2 to about 842 mg/m 2 of a protective comprising a nonsulfonated protective topical binder, wherein said antistatic coating has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5.

Claim 22

Dependent Claim 12 words

An antistatic electronic packaging bag formed from the film of claim 18.

Claim 23

Dependent Claim 99 words

A multiple layer self-supporting antistatic/protective film comprising: a) an antistatic layer comprising from about 8% by weight to about 60% by weight vanadium pentoxide, and b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality, selected from the group consisting of sulfopolymers, and addition polymers, wherein said antistatic layer has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5, said antistatic coating being overcoated with a protective layer comprising from about 210 mg/m 2 to about 842 mg/m 2 of a nonsulfonated protective topical binder.

Claim 24

Dependent Claim 99 words

A multiple layer self-supporting antistatic/protective film comprising: a) an antistatic layer comprising from about 8% by weight to about 60% by weight vanadium pentoxide, and b) from about 36 mg/m 2 to about 270 mg/m 2 of a polymer latex having a hydrophilic functionality, selected from the group consisting of sulfopolymers, and addition polymers, wherein said antistatic layer has a ratio of sulfopolymer to vanadium pentoxide of from about 0.5 to about 5, said antistatic coating being overcoated with a protective layer comprising from about 210 mg/m 2 to about 842 mg/m 2 of a nonsulfonated protective topical binder.

Claim 25

Dependent Claim 12 words

An antistatic electronic packaging bag formed from the film of claim 20.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2000-03-10	2000-09-09	2001-03-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2004-03-10	2004-09-09	2005-03-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2008-03-10	2008-09-09	2009-03-11	$7700.00	Window Closed / Lapsed

Static dissipative electronic packaging article

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