Invention Grant
- Patent Title: Polymeric composite articles comprising the heterogeneous surface/bulk distribution of discrete phase
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Application No.: US16247635Application Date: 2019-01-15
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Publication No.: US11008453B2Publication Date: 2021-05-18
- Inventor: Brian M. Cromer , Robert John Barsotti , Samuel Schulte
- Applicant: Arkema France
- Applicant Address: FR Colombes
- Assignee: Arkema France
- Current Assignee: Arkema France
- Current Assignee Address: FR Colombes
- Agent Thomas F. Roland
- Main IPC: C08L33/12
- IPC: C08L33/12 ; C08K3/36 ; C08K3/013 ; C08K3/22 ; C08L23/02 ; C08L25/12 ; C08L27/06 ; C08L55/02 ; C08L69/00 ; C08L71/02 ; C08L75/04 ; C08L77/00 ; C08K3/04 ; C08L33/04 ; C08L83/04

Abstract:
The invention relates to a thermoplastic article having a continuous polymeric phase and a discontinuous discrete phase distributed within the continuous phase. The discontinuous phase may be inorganic materials or an organic phase. The volume fraction of the discrete phase at the surface of the article is plus or minus 15% of the concentration of the additive as compared to the concentration of the additive in the bulk of the material (>20 micrometers). The invention also relates an article where the discrete additive forms domains in the surface region—potentially beneficial for gloss reduction or electrical conductivity. The invention finally relates to a process for forming a thermoplastic article with surface additive enhancement, with inclusion of inductive heating of one or more surfaces of the mold to induce the unique distribution.
Public/Granted literature
- US20190218385A1 POLYMERIC COMPOSITE ARTICLES COMPRISING THE HETEROGENEOUS SURFACE/BULK DISTRIBUTION OF DISCRETE PHASE Public/Granted day:2019-07-18
Information query
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