ARCTIC RUBBER
Progress was made in curing copolymers of CF2=CFCl/CF2=CH2 (X-300 series) with diisocyanates. The 30/70 molar copolymer was as oil-resistant as the 50/50 and offered a 6-9 deg C advantage in TR-70 temperature; the 62/38 product was not notably rubber-like. Stepwise exposure of MDI vucanizates of X-...
Main Authors: | , |
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Other Authors: | |
Format: | Text |
Language: | English |
Published: |
1953
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Subjects: | |
Online Access: | http://www.dtic.mil/docs/citations/AD0021494 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0021494 |
Summary: | Progress was made in curing copolymers of CF2=CFCl/CF2=CH2 (X-300 series) with diisocyanates. The 30/70 molar copolymer was as oil-resistant as the 50/50 and offered a 6-9 deg C advantage in TR-70 temperature; the 62/38 product was not notably rubber-like. Stepwise exposure of MDI vucanizates of X- 300 to higher temperatures produced a material which was serviceable up to 537 deg F. |
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