GB1342671A

GB1342671A – Process for making expanded synthetic resinous microspheres
– Google Patents

GB1342671A – Process for making expanded synthetic resinous microspheres
– Google Patents
Process for making expanded synthetic resinous microspheres

Info

Publication number
GB1342671A

GB1342671A
GB1795371A
GB1795371A
GB1342671A
GB 1342671 A
GB1342671 A
GB 1342671A
GB 1795371 A
GB1795371 A
GB 1795371A
GB 1795371 A
GB1795371 A
GB 1795371A
GB 1342671 A
GB1342671 A
GB 1342671A
Authority
GB
United Kingdom
Prior art keywords
microspheres
expanded
moving surface
expanding
suitably
Prior art date
1970-05-28
Legal status (The legal status 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 status listed.)

Expired

Application number
GB1795371A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Dow Chemical Co

Original Assignee
Dow Chemical Co
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.)
1970-05-28
Filing date
1971-05-28
Publication date
1974-01-03

1971-05-28
Application filed by Dow Chemical Co
filed
Critical
Dow Chemical Co

1974-01-03
Publication of GB1342671A
publication
Critical
patent/GB1342671A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

C—CHEMISTRY; METALLURGY

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

C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S264/00—Plastic and nonmetallic article shaping or treating: processes

Y10S264/06—Molding microballoons and binder

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S264/00—Plastic and nonmetallic article shaping or treating: processes

Y10S264/09—Pre-expansion of foamed polystyrene

Abstract

1342671 Expanded microspheres DOW CHEMICAL CO 28 May 1971 [28 May 1970] 17953/71 Headings C3C and C3P Expanded synthetic resinous microspheres are obtained by (1) depositing on a moving surface an exposed layer of expandable microspheres (prepared, for example, by suspension (co)polymerization in the presence of a volatile organic expanding agent), the deposition being effected from a dispersion of expandable microspheres in a non-solvent containing a flocculating agent for the expanded microspheres, (2) carrying the exposed layer through a zone in which the moving surface is heated from a location adjacent the surface and opposite from the microspheres, the heating being to a temperature and for a time to dry and expand the microspheres, a flowing gas being simultaneously contacted with the drying and expanding microspheres, and (3) removing the dried expanded microspheres from the moving surface. The flowing gas, e.g. hot air, is preferably brought into concurrent flow contact with the microspheres for the first part of the heating step, i.e. the drying stage, and into countercurrent flow contact for the second part, i.e. the expanding stage. The moving surface is suitably a PTFE coated woven glass fibre endless conveyer belt. A long list of suitable flocculants is given. The microspheres are suitably of vinylidene chloride/acrylonitrile copolymer, vinyl chloride/vinylidene chloride copolymer, polymethylmethacrylate or poly-o-chlorostyrene. The expanded microspheres prepared above may be used to make synthetic foams in which they are incorporated in a curing matrix, e.g. a polyester or epoxy resin.

GB1795371A
1970-05-28
1971-05-28
Process for making expanded synthetic resinous microspheres

Expired

GB1342671A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US4122670A

1970-05-28
1970-05-28

Publications (1)

Publication Number
Publication Date

GB1342671A
true

GB1342671A
(en)

1974-01-03

Family
ID=21915425
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB1795371A
Expired

GB1342671A
(en)

1970-05-28
1971-05-28
Process for making expanded synthetic resinous microspheres

Country Status (13)

Country
Link

US
(1)

US3611583A
(en)

AT
(1)

AT311682B
(en)

BE
(1)

BE767751A
(en)

CA
(1)

CA934237A
(en)

CH
(1)

CH561565A5
(en)

DE
(1)

DE2125905A1
(en)

DK
(1)

DK135849B
(en)

ES
(1)

ES391502A1
(en)

FR
(1)

FR2093741A5
(en)

GB
(1)

GB1342671A
(en)

IL
(1)

IL36786A
(en)

NL
(1)

NL7107224A
(en)

SE
(1)

SE363265B
(en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

SE439599B
(en)

*

1981-01-14
1985-06-24
Kema Nord Ab

WAY TO DRY AND EXPAND IN LIQUID DISPERSED, THERMOPLASTIC MICROSPHERES CONTAINING, VOLTABLE, LIQUID JEWELERY

CA1161615A
(en)

*

1981-06-22
1984-02-07
James S. Nettleton
Rubber recovery apparatus

SE452471B
(en)

*

1982-11-26
1987-11-30
Casco Nobel Ab

PROCEDURE FOR EXPANDING THERMOPLASTIC MICROSPHERES

US4751249A
(en)

*

1985-12-19
1988-06-14
Mpa Diversified Products Inc.
Reinforcement insert for a structural member and method of making and using the same

US4769391A
(en)

*

1985-12-19
1988-09-06
Essex Composite Systems
Reinforcement insert for a structural member and method of making and using the same

AU7731594A
(en)

*

1993-09-24
1995-04-10
Urethane Technologies, Inc.
Process for forming integral skin micorcellular structures

BR9804597A
(en)

1998-11-10
2000-05-30
Cosmeticos Natural Ind Com

Cosmetic composition in the form of powder.

US6866906B2
(en)

2000-01-26
2005-03-15
International Paper Company
Cut resistant paper and paper articles and method for making same

CN1703555B
(en)

*

2002-09-13
2011-09-14
国际纸业公司
Paper with improved stiffness and bulk and method for making same

JP4177366B2
(en)

*

2004-10-13
2008-11-05
リーター・アウトマーティク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング

Process for continuously drying wet granulated material transferred by a screen type belt conveyor, and apparatus for realizing the process

MX2007011113A
(en)

2005-03-11
2007-11-15
Int Paper Co
Compositions containing expandable microspheres and an ionic compound, as well as methods of making and using the same.

DE102006008970A1
(en)

*

2006-02-23
2007-08-30
Röhm Gmbh

Additive building material mixtures with nonionic emulsifiers

DE102006008966A1
(en)

*

2006-02-23
2007-08-30
Röhm Gmbh

Additive building material mixtures with spray-dried microparticles

CN104032622A
(en)

2008-08-28
2014-09-10
国际纸业公司
Expandable Microspheres And Methods Of Making And Using The Same

CN110198821A
(en)

2016-11-11
2019-09-03
生活实验公司
The method for expanding expansiveness polymer microballoon

1970

1970-05-28
US
US41226A
patent/US3611583A/en
not_active
Expired – Lifetime

1971

1971-04-30
CA
CA111884A
patent/CA934237A/en
not_active
Expired

1971-05-06
IL
IL36786A
patent/IL36786A/en
unknown

1971-05-14
CH
CH716071A
patent/CH561565A5/xx
not_active
IP Right Cessation

1971-05-17
SE
SE06378/71A
patent/SE363265B/xx
unknown

1971-05-24
ES
ES391502A
patent/ES391502A1/en
not_active
Expired

1971-05-25
DE
DE19712125905
patent/DE2125905A1/en
active
Pending

1971-05-26
NL
NL7107224A
patent/NL7107224A/xx
unknown

1971-05-26
FR
FR7119018A
patent/FR2093741A5/fr
not_active
Expired

1971-05-27
DK
DK258971AA
patent/DK135849B/en
unknown

1971-05-27
BE
BE767751A
patent/BE767751A/en
unknown

1971-05-28
GB
GB1795371A
patent/GB1342671A/en
not_active
Expired

1971-05-28
AT
AT466871A
patent/AT311682B/en
not_active
IP Right Cessation

Also Published As

Publication number
Publication date

AT311682B
(en)

1973-11-26

BE767751A
(en)

1971-11-29

IL36786A
(en)

1974-01-14

ES391502A1
(en)

1974-05-01

DK135849C
(en)

1977-12-05

NL7107224A
(en)

1971-11-30

IL36786A0
(en)

1971-07-28

DE2125905A1
(en)

1971-12-16

FR2093741A5
(en)

1972-01-28

DK135849B
(en)

1977-07-04

CH561565A5
(en)

1975-05-15

CA934237A
(en)

1973-09-25

SE363265B
(en)

1974-01-14

US3611583A
(en)

1971-10-12

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Legal Events

Date
Code
Title
Description

1974-05-15
PS
Patent sealed [section 19, patents act 1949]

1979-01-04
PCNP
Patent ceased through non-payment of renewal fee

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