EP0276094A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Razor component and lubricating strip
Assignee: Warner Lambert Co LLC
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Filing: 1988-01-15
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Granted: —
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Expires: 2008-01-15
Abstract
Abstract A razor component (R) and lubricating strip (20). The strip (20) comprises a shave-aiding agent and between about 0.10 to about 10% by weight of a water soluble cosmetically acceptable plasticizer for the shave-aiding agent. This reduces the injection molding temperature of the strip (20), so that the strip (20) can be molded on the component (R) after the component (R) has been molded.
Inventors
- 👤 David B. Braun
- 👤 Vincent C. Motta
- 👤 William E. Vreeland
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 10:40
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/44; B26B21/443
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
36 words
A razor component having a lubricating strip said strip being characterised by comprising a shave-aiding agent and between about 0.1% to about 10% by weight of a water soluble cosmetically acceptable plasticizer for said shave-aiding agent.
Claim 2
Dependent Claim
36 words
A razor component having a lubricating strip said strip being characterised by comprising a shave-aiding agent and between about 0.1% to about 10% by weight of a water soluble cosmetically acceptable plasticizer for said shave-aiding agent.
Claim 3
Dependent Claim
28 words
A razor component according to Claim 1, characterised in that said strip further comprises an insoluble plastics material, and said plasticizer is incompatible with said insoluble plastics material.
Claim 4
Dependent Claim
20 words
A razor component according to Claim 2, characterised in that said insoluble plastics material is polystyrene, preferably general purpose polystyrene.
Claim 5
Dependent Claim
19 words
A razor component according to Claim 1, 2 or 3, characterised in that said shave-aiding agent comprises polyethylene oxide.
Claim 6
Dependent Claim
39 words
A razor component according to any of Claims 1 to 4, characterised in that the strip comprises, by weight, about 55% to about 85% polyethylene oxide, about 35% to about 15% polystyrene, and about 0.1% to about 10% plasticizer.
Claim 7
Dependent Claim
33 words
A razor component according to any of Claims 1 to 5, characterised in that the plasticizer is one or more of propylene glycol, polyethylene glycol, polypropylene glycol, glycerol, alkyl phenol ethoxylate and water.
Claim 8
Dependent Claim
26 words
A razor component according to any of Claims 1 to 6, characterised in that the plasticizer is octyl phenol ethoxylate containing nine moles of ethylene oxide.
Claim 9
Independent Claim
119 words
A method for sequentially injection molding a lubricating strip and at least a plastic razor component with orifices for anchoring said strip in a position extending longitudinally across the component, said method being characterised by: molding at least said component with orifices spaced along a recessed area extending longitudinally across the component; and injecting a mixture comprising at least a shave-aiding agent and from about 0.1% to about 10% by weight of the mixture of a water soluble cosmetically acceptable plasticizer, at temperatures sufficient to produce flowability of the shave-aiding agent without substantially reducing its molecular weight during the time of injection, said mixture forming said strip and flowing into said orifices to anchor said strip to said component.
Claim 10
Independent Claim
119 words
A method for sequentially injection molding a lubricating strip and at least a plastic razor component with orifices for anchoring said strip in a position extending longitudinally across the component, said method being characterised by: molding at least said component with orifices spaced along a recessed area extending longitudinally across the component; and injecting a mixture comprising at least a shave-aiding agent and from about 0.1% to about 10% by weight of the mixture of a water soluble cosmetically acceptable plasticizer, at temperatures sufficient to produce flowability of the shave-aiding agent without substantially reducing its molecular weight during the time of injection, said mixture forming said strip and flowing into said orifices to anchor said strip to said component.
Claim 11
Dependent Claim
24 words
A method according to Claim 8, characterised in that the mixture further includes an insoluble plastics material, and the shave-aiding agent comprises polyethylene oxide.
Claim 12
Dependent Claim
18 words
A method according to Claim 9, characterised in that the insoluble plastics material is polystyrene, preferably particulate polystyrene.
Claim 13
Dependent Claim
44 words
A razor component and a lubricating strip disposed on an upper surface of the component, characterised in that said strip includes anchoring means for anchoring the strip to the component, and said anchoring means comprises a plurality of anchoring formations extending into the component.
Claim 14
Dependent Claim
44 words
A razor component and a lubricating strip disposed on an upper surface of the component, characterised in that said strip includes anchoring means for anchoring the strip to the component, and said anchoring means comprises a plurality of anchoring formations extending into the component.
Claim 15
Dependent Claim
36 words
A razor component according to Claim 11, characterised in that each anchoring formation has a free end which includes a portion disposed at an angle to, and/or of greater thickness than, the rest of the formation.
Claim 16
Dependent Claim
69 words
A razor component according to Claim 11 or 12, characterised in that each anchoring formation comprises a downwardly directed substantially T-shaped formation, the top of the T is substantially parallel to the strip and abuts a portion of the component substantially parallel to the top of the upper surface of the component, and the leg of the T extends through the component between the upper surface and said portion.
Claim 17
Dependent Claim
26 words
A razor component according to Claim 11, 12 or 13, characterised in that the strip is molded in place after a molding operation forming the component.
References Cited (Backward Citations)
No citation records indexed.
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