Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR13184Aexternal-prioritypatent/FR1440075A/fr
Priority claimed from FR128060Aexternal-prioritypatent/FR93618E/fr
Application filedfiledCritical
Publication of BE730508ApublicationCriticalpatent/BE730508A/xx
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
C08J9/22—After-treatment of expandable particles; Forming foamed products
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
B29C44/34—Auxiliary operations
B29C44/3461—Making or treating expandable particles
Landscapes
Chemical & Material Sciences
(AREA)
Engineering & Computer Science
(AREA)
Materials Engineering
(AREA)
Health & Medical Sciences
(AREA)
Chemical Kinetics & Catalysis
(AREA)
Medicinal Chemistry
(AREA)
Polymers & Plastics
(AREA)
Organic Chemistry
(AREA)
Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products
(AREA)