EP0254923A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Coextruded plastic film label for in-mold-labeling
Assignee: Dow Chemical Co
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Filing: 1987-07-08
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Granted: —
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Expires: 2007-07-08
Abstract
Abstract A label particularly adapted for use in in-mold labeling of blow-molded polyethylene containers comprising a heat activatable ethylene polymer adhesive layer and a surface printable layer with optional intermediate layers to provide interlayer adhesion and recycle of reground labels.
Inventors
- 👤 Carol A. Dudley
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 00:53
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/04; G09F3/02; B; B29; B29C; B29C49/00; B29C49/24; B29C2049/2412; B29C2049/2414; B29C2049/24302; B29C2049/24306; B29L; B29L2009/00; B29L2031/00; B29L2031/744; G09F2003/0223; G09F2003/023; G09F2003/0233
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
An adhesive label particularly adapted for use in the in-mold labeling of blow-molded polyethylene containers comprising: 1) a heat activatable adhesive substrate layer of a polymer selected from: a) homopolymers of ethylene; b) copolymers of ethylene with one or more a-olefins having from 4 to 8 carbons; c) mixtures of a) and b); and d) mixtures of either a), b), or c) with up to 95 percent, preferably up to 50 percent, by weight of a copolymer comprising ethylene and from 1 to 30 percent by weight of a copolymerizable ethylenically unsaturated carboxyl containing comonomer; 2) when the heat activatable adhesive substrate layer comprises a), b), or c), an interlayer of a copolymer of ethylene and from 1 percent to 30 percent by weight of a copolymerizable ethylenically unsaturated carboxyl containing comonomer; and 3) a surface printable layer comprising polystyrene.
Claim 2
Dependent Claim
140 words
An adhesive label particularly adapted for use in the in-mold labeling of blow-molded polyethylene containers comprising: 1) a heat activatable adhesive substrate layer of a polymer selected from: a) homopolymers of ethylene; b) copolymers of ethylene with one or more a-olefins having from 4 to 8 carbons; c) mixtures of a) and b); and d) mixtures of either a), b), or c) with up to 95 percent, preferably up to 50 percent, by weight of a copolymer comprising ethylene and from 1 to 30 percent by weight of a copolymerizable ethylenically unsaturated carboxyl containing comonomer; 2) when the heat activatable adhesive substrate layer comprises a), b), or c), an interlayer of a copolymer of ethylene and from 1 percent to 30 percent by weight of a copolymerizable ethylenically unsaturated carboxyl containing comonomer; and 3) a surface printable layer comprising polystyrene.
Claim 3
Dependent Claim
44 words
The label according to Claim 1, having a 1 percent secant modulus of from 150,000 to 600,000 l b s/in 2 (1.034 x 10 9 to 4.136 x 10 9 Pa) and a thickness of from 0.001 to 0.010 inch (.025 to 0.25 mm).
Claim 4
Dependent Claim
30 words
The label according to Claim 1, having a 1 percent secant modulus from 200,000 to 400,000 lb/in 2 (1 . 378 x 109 to 2.758 x 1 0 9 Pa).
Claim 5
Dependent Claim
18 words
The label according to Claim 1, having a thickness from 0.002 to 0.005 inches (0.05 to 0.127 mm).
Claim 6
Dependent Claim
16 words
The label according to Claim 1, wherein the heat activatable adhesive substrate comprises low density polyethylene.
Claim 7
Dependent Claim
14 words
The label according to Claim 1, wherein the carboxyl containing comonomer is vinyl acetate.
Claim 8
Dependent Claim
27 words
The label according to Claim 1, additionally containing a recycle layer of ground remelted label interposed between the heat activatable adhesive substrate and the surface printable layer.
Claim 9
Dependent Claim
25 words
The label according to Claim 1, wherein the surface printable layer additionally comprises from 30 to 2 percent by weight of a pigment or filler.
References Cited (Backward Citations)
No citation records indexed.
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