EP0147959A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process for producing radiation curable adhesive tape
Assignee: Resonac Corp
•
Filing: 1984-12-06
•
Granted: —
•
Expires: 2004-12-06
Abstract
Abstract In a process for producing a radiation curable pressure sensitive adhesive tape, when a quaternary ammonium salt is coated on a substrate as an undercoating before the coating of an adhesive composition comprising a liquid oligomer and a thiol compound, the resulting adhesive tape has good adhesive strength and higher cohesion with no unpleasant odor of the thiol compound.
Inventors
- 👤 Tomohisa Ohta
- 👤 Akihiko Dobashi
- 👤 Hisashige Kanbara
- 👤 Yasuyuki Seki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/065; C08J7/043; C09; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/38; C09J7/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
74 words
In a process for producing a radiation curable adhesive tape by coating a pressure sensitive adhesive composition comprising a liquid oligomer having one or more radically crosslinkable unsaturated double bonds in its molecule and a thiol compound on a surface of substrate and exposing said composition to radiation, the improvement which comprises coating as an undercoating a quaternary ammonium salt on a surface of substrate before the coating of the pressure sensitive adhesive composition.
Claim 2
Dependent Claim
74 words
In a process for producing a radiation curable adhesive tape by coating a pressure sensitive adhesive composition comprising a liquid oligomer having one or more radically crosslinkable unsaturated double bonds in its molecule and a thiol compound on a surface of substrate and exposing said composition to radiation, the improvement which comprises coating as an undercoating a quaternary ammonium salt on a surface of substrate before the coating of the pressure sensitive adhesive composition.
Claim 3
Dependent Claim
30 words
A process according to claim 1, wherein the quaternary ammonium salt is at least one of trioctylmethylammonium chloride, dilauryldimethylammonium chloride, lauryltrimethylammonium chloride, coconut oil-trimethylammonium chloride, tallow-trimethylammonium chloride and trimethylbenzylammonium chloride.
Claim 4
Dependent Claim
30 words
A process according to claim 1 or 2, wherein the quaternary ammonium salt is coated on a surface of substrate in an amount of 0.01 to 5 g/m 2 .
Claim 5
Dependent Claim
26 words
A process according to any one of the preceding claims, wherein the quaternary ammonium salt is used as a solution, if necessary, with an organic solvent.
Claim 6
Dependent Claim
28 words
A process according to any one of the preceding claims, wherein the substrate is a polyethylene film, a polyester film, a polypropylene film, or a polyvinyl chloride film.
Claim 7
Dependent Claim
25 words
A process according to any one of the preceding claims, wherein the adhesive composition further comprises one or more acrylic monomers having an acidic group.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.