Gelatinous elastomer swabs

• US 5,239,723 A
• Filed: 08/24/1992
• Issued: 08/31/1993
• Est. Priority Date: 03/17/1977
• Status: Expired due to Fees

• Current Assignee: Applied Elastomerics Incorporated
• Original Assignee: Applied Elastomerics Incorporated
• Inventors: Chen, John Y.
• Primary Examiner(s): Lilling, Herbert J.
• Application Number:
  US07/934,027
• Time in Patent Office: 372 Days
• Field of Search: 15/104.002, 15/210.1, 15/214, 524/505, 524/474, 524/476
• US Class Current: 15/104.2
• CPC Class Codes: A61C 15/041 Dental floss chemical aspects A61Q11/00
• CPC Class Codes: A63H 33/185 Aerial toy rotating automatically when descending under gravity
• CPC Class Codes: C08K 5/01 Hydrocarbons C08K5/0091 takes precedence
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/24 Graft or block copolymers according to groups C08L51/00, C08L53/00 or C08L55/02; Derivatives thereof
• CPC Class Codes: C08L 51/00 Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds for ABS polymers C08L55/02; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 53/00 Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 53/02 of vinyl-aromatic monomers and conjugated dienes
• CPC Class Codes: C08L 53/025 modified

Abstract

A novel reusable swab having a gelatinous elastomer swab head attached to one or both ends of a handle is disclosed. The gelatinous elastomer swab head exhibits a combination of properties including unexpectedly high elongation and tensile strength and excellent shape retention after extreme deformation under high-velocity impact and stress conditions. The gelatinous elastomer swabs of this invention are soft, flexible, and have elastic memory, characterized by a gel rigidity of from about 20 gram to about 800 gram Bloom. These and other properties are particularly essential for cleaning various surfaces, deeply recessed areas small crevices, curved surfaces, various hard-to-clean corners of a car interior, other nooks and crannies, and the like.

Claims

1. A reusable swab comprising;

(a) a handle;

(b) a gelatinous elastomer swab head, and

(c) means for attaching said swab head to one or both ends of said handle, said gelatinous elastomer swab head formed from a composition comprising;

(i) 100 parts by weight of a high viscosity triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene);

(ii) from about 300 to about 1,600 parts by weight of a plasticizing oil;

said composition characterized by a gel rigidity of from about 20 to about 800 gram Bloom.

2. A reusable swab according to claim 1, wherein said styrene to ethylene and butylene is of a ratio of from about 20:

80 to about 40;

60.

3. A reusable swab according to claim 1, wherein said styrene to ethylene and butylene is of a ratio of from about 30:

70 to about 40;

60.

4. A reusable swab according to claim 1, wherein said styrene to ethylene and butylene is of a ratio of from about 31:

69 to about 40;

60.

6. A reusable swab according to claim 1 or 5, wherein said triblock copolymer is characterized by a Brookfield Viscosity of a 20 weight percent solid solution in toluene at 25°

C. of at least about 1,800 cps.

5. A reusable swab comprising:

(a) a handle, and

(b) a gelatinous elastomer swab head;

wherein said swab head is interlocked with an open cell foam attached to one or both ends of said handle, said gelatinous elastomer swab head formed from a composition comprising;

(i) 100 parts by weight of a high viscosity triblock copolymer of the general configuration poly(styrene-ethylene-butylene-styrene);

(ii) from about 300 to about 1,600 parts by weight of a plasticizing oil;

said composition characterized by a gel rigidity of from about 20 to about 800 gram Bloom.