Antistatic resin composition with transparency containing phosphonium sulphonate

• US 4,943,380 A
• Filed: 02/27/1989
• Issued: 07/24/1990
• Est. Priority Date: 09/18/1987
• Status: Expired due to Term

• Current Assignee: Takemoto Yushi Kabushiki Kaisha
• Original Assignee: Takemoto Yushi Kabushiki Kaisha
• Inventors: Shimizu, Hideo, Sugiura, Masato, Imamura, Shigeru, Sugiura, Fumitoshi
• Primary Examiner(s): Clingman, A. Lionel
• Application Number:
  US07/316,603
• Time in Patent Office: 512 Days
• Field of Search: 252/8.7, 252/8.6, 252/174.16, 260/DIG. 16
• US Class Current: 524/154
• CPC Class Codes: C08K 5/50 Phosphorus bound to carbon only
• CPC Class Codes: C08L 33/12 Homopolymers or copolymers of methyl methacrylate
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• CPC Class Codes: Y10S 260/16 Antistatic agents containing a metal, silicon, boron or phosphorus
• CPC Class Codes: Y10S 260/19 Non-high polymeric antistatic agents/n

Abstract

An antistatic resin composition with transparency contains 90-99.9 wt % of a synthetic resin selected from polycarbonate or polymethyl methacrylate and 0.1-10 wt % of a heat-resistant antistat containing phosphonium sulfonate shown by the general formula (I) below: ##STR1## where A is alkyl group with 1-36 carbon atoms, alkenyl group with 4-24 carbon atoms, phenyl group, phenyl group substituted by alkyl group with 1-18 carbon atoms, naphthyl group or naphthyl group substituted by alkyl group with 1-18 carbon atoms, R¹, R² and R³ are identical, each being an aliphatic hydrocarbon group with 1-8 carbon atoms or aromatic hydrocarbon group, and R⁴ is a hydrocarbon group with 1-18 carbon atoms.

Claims

1. An antistatic resin composition with transparency characteristics comprising 90-99.9 wt % of a synthetic resin selected from polycarbonate or polymethyl methacrylate and 0.1-10 wt % of a heat-resistant antistat comprising phosphonium sulfonate shown by the general formula (I) below:

##STR3## wherein A is alkyl group with 1-36 carbon atoms, alkenyl group with 4-24 carbon atoms, phenyl group, phenyl group substituted by alkyl group with 1-18 carbon atoms, naphthyl group or naphthyl group substituted by alkyl group with 1-18 carbon atoms, R¹, R² and R³ are identical, each being an aliphatic hydrocarbon group with 1-8 carbon atoms or aromatic hydrocarbon group, and R⁴ is a hydrocarbon group with 1-18 carbon atoms.