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Title: Water soluble barrier coatings for washout tooling for a composite layup

Patent ·
OSTI ID:1986935
; ; ;

A washout tooling for a composite layup is provided. The washout tooling comprises a casting mold having an exterior surface. The casting mold comprises a particulate material and a water-soluble binder. The casting mold is adapted to break down in the presence of an aqueous solution. The washout tooling further comprises a water-soluble coating layer overlying the exterior surface. The water-soluble coating layer is adapted to break down in the presence of an aqueous solution. The washout tooling further comprises a curable composite layer overlying the water-soluble coating layer. The water-soluble coating layer minimizes contact between the particulate material and the curable composite layer.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN)
Patent Number(s):
11,524,427
Application Number:
17/126,457
OSTI ID:
1986935
Resource Relation:
Patent File Date: 12/18/2020
Country of Publication:
United States
Language:
English

References (5)

Material System for Producing a Molded Part Using a Water-Soluble Casting Mold patent-application August 2018
Method of Producing Molds and Cores Suitable for Producing Fiber Composite Bodies or Cast Parts in Metal or Plastic, Mold Base Material and Binder Used in the Method and Molds and Cores Produced According to the Method patent-application October 2020
Mold Material, Method of Producing the Same, and Method of Producing Casting Mold patent-application October 2020
Indirect Additive Manufacturing Process Using Amine-Containing Adhesive Polymers patent-application July 2020
Additive manufacturing of strong silica sand structures enabled by polyethyleneimine binder journal August 2021

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