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GRACE CONFIDENTIAL
CONSOLIDATED MONTHLY REPORT OCTOBER 1972
This Consolidated Monthly Summary contains the technical
information for October 1972. Because of the highly
confidential nature of its contents, circulation is
limited. Those receiving copies are requested to limit
access to only those members within their organization
who have a real neea-to-know. '
.
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w r GRACE & co
RESEARCH DIVISION
WAShING'ON RESEARCH CENTER, CLARKSVILLE, MARYLAND 2I02S Telephone 301 - 531-5711
MONTHLY REPORT FOR OCTOBER 1972
GRACE
November 2, 1972
CONSOLIDATED EDITION
GRACE CONFIDENTIAL
NOT TO C-0 OUTSIDE U.S.
This report contains information on the following activities
at the Washington Research Center:
PROJECT
PROJECT TITLE
NO.
PAGE
Reformulation and Evaluation of Mono-Kote
ZIC Product Improvement
Monolith Cement Chattanooga Thorium Purification Ceramic Bonded Vermiculite Sea Water Scale Inhibitor Auto Exhaust Catalyst Monolithic Catalyst Support Catalyst; Support Materials Auto-Exhaust Catalysts
2659 2681 22 64
27^5
2663
2451 2302 2304
2211 2821
1 1 2 2
3
H
5a 5a 5b
5'd
Airmold Support Program Foam Studies Two-Piece Cans ISC Projects - Cationic Polyelectrolytes Crosslinkable Hydrophilic Cationic Polymer Market Studies - Textile Applications
Lowenstein Project Proctor Application Bound Enzymes Sponges Pilot-Plant Activity Hydrophobic Foams
Fire-Retardant Polyester Intumescent Laminates
(CHC)
1561 1427 1553 1440 1428 1428 1432 1432
4629 1428 1428 1430
1407 1656
6 6 b
7 8
9 9 10 11 11 12 12 12
13
Lithographic Printing Plates Solder Photoresist
Dry-Film Photoresist LETTEEFLEX -- GLASS Project
1373 1387 1372 1383
15 16
17 19a
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,Move-ter 2 1972
FRC.7E0T TITLE
PROJECT NO. PAGE
Adas:ed Rur.en Kic:ote (A?:*:) Products
Ammonium Isobutyrate as Grain and Kaylage Preservative
Particle Bound Enzymes Enzymatic Treatment of Feedlot Bloat Animal Growth Promoters
9623
f>h-C)
9697 9698
4671 9629 9650 9661
20
20 21 22 22
Grace Cane Sugar Process SHIELDEX Strippable Coatings Silicate Bonded Vermiculite Board Roofing Tile, Vermlculite Clay
'
3223 1698 2661 2679
- 23 -
23
23 29
Appendix A - Research Division Activity Report - October 1972
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1 ovember 2, 1972
-K0T5 ( Project 2b `,Q'
The cau objective of this program has been to develop an asbestosfree replacement of MK-III which would give equivalent Underwriters' Laboratories test results. This objective has been met except for a few minor points by the development of MK-V. CPD ia planning to fully commercialize the product and replace MK-III and MK-IV in 1973 The purpose of the current Mono-Kote program is:
(1) Determine the effect of environmental conditions on curing cf MK-IV and MK-V.
(2) Determine the factors promoting shrink-crack.
(3) Determine the effect of gypsum manufacturing techniques cn Mono-Kote properties.
(b) Determine means for mold-growth inhibition.
Laboratory work on item (l) has been completed. The Mathematics Department Is analyzing results . Data on Item (2) are being obtained but work is progressing slowly. Effort is being made to quantify tne data. No additional data are available on item (3).
An Important problem has arisen in recent months concerning the growth cf common black mold on several commercial installations of Mono-Kote. Laboratory studies at WRC have shown that sodium pro pionate and Kyamlne 2389 have fungicidal activity to stop this growth. Both fungicides have been field tested at a commercial installation in Washington, D. C. and results appear favorable in arresting mold growth.
(Legalj Kraus)
ZIC PRODUCT IMPROVEMENT (Project 2681)
The objective of this project is to produce Zonolite insulating concrete (ZIC) at wet densities below 50 pcf and dry densities be low 28 pcf with properties comparable to the present product. It has been demonstrated that the use of a combination of the Allen town pneumatic gun and the Waukesha foam generator enables attain ment of the stated objectives. Products have been made at wet den sities in the 35~40 pcf and dry densities in the 23-28 pcf ranges. Water content of the freshly applied material has been reduced from the present 3i to 4 gal/fto down to 1.7 to 2.5 gal/ft3. Prop erties of the dry material, especially compressive strength, are comparable 10 the present product in laboratory testing, it is possible to apply ZIC at both 6:1 and 8:1 volume percent vermicullte-cement to vertical or overhead surfaces.
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