USPatentGranted
B2

Moisture resistant polyimide compositions

Granted 29 Mar 2016 · 4 office actions

Current assignee: SHPP Global Technologies B.V. · originally Saudi Basic Industries Corporation

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Inventors: Michael Stephen Donovan, Gurulingamurthy M. Haralur · Examiner: Ana Woodward · AU 1765 · TC 1700

Life of the patent

11 dated events
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Abstract

The invention relates to a moisture resistant composition comprising: a) from 20 to 80 weight percent based on the total weight of the composition of a polyetherimide copolymer made from a monomer mixture comprising 3,3′ bisphenol-A dianhydride (BPADA), and 4,4′-diaminodiphenyl sulfone (DDS); b) from 5 to 75 weight percent based on the total weight of the composition of polyetheretherketone (PEEK); and c) from 0 to 30 weight percent based on the total weight of the composition of a filler. The invention relates to a reflector substrate comprising a moisture resistant layer metalized with a reflective layer, wherein the moisture resistant layer comprising the moisture resistant composition. The invention relates to a method for producing a metalized coating without a primer comprising applying a reflective layer directly to a moisture resistant layer in the absence of a primer, wherein the moisture resistant layer comprises the moisture resistant composition.

Claims

8 · 1 independent · depth 3
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8 granted claims

Classifications

10 codes
IPC · International Patent Classification
Section C — Chemistry; metallurgy
  • C08J5/22
  • C08L79/08
  • C08L79/04
  • C08L71/10
  • C08L71/00
  • C08G79/00
Section F — Mechanical engineering; lighting; heating; weapons
  • F21V7/22
  • F21V7/00
Section G — Physics
  • G02B1/10
  • G02B27/00

Claim changes

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File wrapper

⤢ drag to zoomJan 2015Apr 2015Jul 2015Oct 2015Jan 2016Apr 2016USPTOApplicantNon-final rejectionResponse after non-finalResponse after finalRequest for continued examination
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Pendency
1.3 y
473 days filing → grant
Office actions
2
non-final + final
Responses
3
1 RCE
Examiner
Ana Woodward
art unit 1765 · TC 1700
Citations: 1 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20150099134 A19 Apr 2015

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Citations

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