Jobs go as Millipore revenues slip

ISSN 0958-2118

November

1998

Number

e

Synthesis of novel pervaporation membranes At the

annual

Institute

meeting

of Chemical

researchers

of

the American

Engineers

from UCLA

this month,

presented

a method

compound

while preventing

through

the

specific

separation

for the synthesis of a novel class of ceramic-

thermodynamic

supported

the Hansen

polymer

(CSP)

pervaporation

membranes. modification

1s based

on

of a ceramic support

grafr-polymrri/.ation modif;cation

procedure.

procedure

of surface hydnqls,

surface

approach

The

step

CSP membranes.

two

of

silylation

which provides the anchoring by a free radical

reaction.

polymerization

‘I‘he researchers

allows

either hydrophilic

or hydrophobic

Ior pcrvaporation

for the attachment

of

(PVAc)

to mass transfer

of the selected

membrane

for water

transfer

of the PVAcwas negligible

process

boundary

controlled

layer

near

ahead

forecast

was

that difficult

reflected

in

its

times are

surface.

third

quarter

revenues which were down 14 % on the same period last year at US$159 impacted

hard

on

the

million. This has company

and

has

resulted in significant job losses. ‘lb address

this problem,

on a major summer,

cost

which

In short, mainly

620

workforce

full-time

hard

42%

Copyright

during

nearly hit

businesses. jobs

area were

13% of its total was

local

slowdown

were

which

currency

in this

Q 1998 Elsevier

Millipcire’s due

industry

to

which

shed

nearly

plant

a more

Zadel,

and

“We

CEO

said:

and expertise

from

hence,

enahltng

TCE or chloroform

on

polymer

feed

feed

flow

rate,

brush

layer

and

of a pure

phase. to increase membrane

by manipulating

the properties

of

brush layer to decrease water flux.

For further information contact: Jeng-dung University

by

the

the recovery

work is ongoing

performance

to

of California,

Jou,

Los Angeles, Department of

CA 90095-1592, USA. Tel: +l 310 206 1297; Fax: +l

News

1

Membrane technologies get USd25M worth of inspiration

6

Membrane distillation for radioactive waste treatment

9

its

will yield

million

a year.

note

however,

business

the strength

and pharmaceutical

initiative,

consolidation

achieved

ResearchTrends

13

Patents

14

Events calendar

15

NetScope

16

other

are holding

Millipore’s

in our hiopharmaceutical

result reflects

depending

of grafted

Current

relative

due to the

savings

positive

of Millipore’s

well. C. William growth

concentration

-I 18

up

Chairman double-digit

business.

This

of the biotechnology

industry,

and the products

we bring to them.”

per item.

stored In a retrieval system, or transmitted

mechanical,

the pnor permlssion of the publishers

the

savings of US38

On

69

as 200 A. The was enriched

also had to

this cost cutting

with

segments

which

the same

slump. hopes

combined

of

as large

financial

mirrors

10% of its workforce

Millipore

annual

almost

faced by Osmonics,

Science Ltd. England/98/!$19.00

may be reproduced,

by any form or by any means, electronic, listed on page 2)

the

by the Asian

measure

microelectronics

restructuring

temporary

revenues, in

No part of this publication without

the

of 4800 at the time.

microelectronics worldwide

and

embarked

microelectronics

represented

bspecially down

in radical and associated

in Milliporei

axed. Ibis

initiative

resulted

of its microelecrronics

problems

pores

concentration

Contents

crisis. This drastic

CSI’ membrane

VOC,

that even with

310 206 4107. E-mail: JouQucla.edu

compounded

microelectronics

Millipore

cutting

has been

demonstrated

Chemical Engineering, 5531 Boelter Hall, Los Angeles,

the

Jobs go as Millipore revenuesslip Millipore’s

has

can he accomplished

overall permeate

the polymer

membrane.

say the resistance

the

of

of the CSI’ from

The workers

by

study

pervaporation

density

was evaluated

PVAc-silica

mass

was

to the synthesis

of trichloroethylene

the

on a use of

the graft polymerization

silica membrane essentially

a

a factor

The applicability

using a tubular

the po!ymer

makes

polyvinylacetate

for pervaporation

removal

with

polymcts.

applications

phase ‘serves to allow permeation

the

based

which

and its applicability

membrane

for

parameters.

to demonstrate

by a

consists

say tlus approach

selected

membrane

sites for the gratted chains, f&wed grafr

the

polymer

task is selected

In this work,

approach

-f‘hc

The

approach,

soluhility

The

others from passing

membrane.

photocopying,

recording or otherwise,

(Readers in the USA, please see special regulations

I~I.P~F:VIER \I)\/\N(‘t~lI : i l~rv!ol (I(,\

I