Glossary entry (derived from question below)
German term or phrase:
gewinkelte Isocyanate
English translation:
non-linear isocyanates
Added to glossary by
Subbanna
Dec 3, 2009 12:17
15 yrs ago
German term
gewinkelte Isocyanate
German to English
Science
Chemistry; Chem Sci/Eng
Isocyanates
In a patent claim that mentions diisocyanates, they go on to say "insbesondere aromatische Isocyanate, bevorzugt gewinkelte Isocyanate".
I found "angular, angled; puckered" for "gewinkelt" in a chemistry dictionary, but no convincing Google hits with any of these terms in combination with isocyanates.
Can anyone help, please?
I found "angular, angled; puckered" for "gewinkelt" in a chemistry dictionary, but no convincing Google hits with any of these terms in combination with isocyanates.
Can anyone help, please?
Proposed translations
(English)
| 4 +3 | Non-linear Isocyanate |
Subbanna
|
| 5 | asymmetrical isocyanates |
IP-Chemist
|
| 3 | crosslinked isocyanates |
analytical (X)
|
| 3 | bent isocyanates |
Ingrid Hesse
|
Change log
Dec 8, 2009 16:17: Subbanna changed "Edited KOG entry" from "<a href="/profile/37321">mgrange's</a> old entry - "gewinkelte Isocyanate"" to ""non-linear isocyanates""
Proposed translations
+3
9 mins
Selected
Non-linear Isocyanate
my understanding
Peer comment(s):
| agree |
Trinh Do
: The term refers to the conformation of the group (probably), but this seems most accurate.
2 hrs
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Thanks Trinh Do
|
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| agree |
SusanneM
22 hrs
|
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Thanks SusanneM
|
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| agree |
Rolf Keiser
1 day 1 hr
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Thanks Goldcoaster
|
4 KudoZ points awarded for this answer.
Comment: "This has now been confirmed by my client - many thanks to Subbanna and all who contributed."
8 mins
crosslinked isocyanates
More context would have been nice but his may be of help:
US Patent 5760152 - Crosslinked isocyanate functional polymer supports
We claim:
1. A method for preparing a crosslinked isocyanate-functional polymer support comprising the steps of ....
http://www.patentstorm.us/patents/5760152/claims.html
US Patent 3933756 - Process of preparation of synthetic resins by reacting a cross-linked isocyanate polyaddition product with low molecular weight polyisocyanate followed by reaction with an amino alkyl silane
http://www.patentstorm.us/patents/3933756.html
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Note added at 49 mins (2009-12-03 13:06:16 GMT)
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Yes, crosslinked = vernetzt, but I'm not quite sure about non-linear isocyanates. This reference may help, depending on the context of your translation: http://en.wikipedia.org/wiki/Toluene_diisocyanate
US Patent 5760152 - Crosslinked isocyanate functional polymer supports
We claim:
1. A method for preparing a crosslinked isocyanate-functional polymer support comprising the steps of ....
http://www.patentstorm.us/patents/5760152/claims.html
US Patent 3933756 - Process of preparation of synthetic resins by reacting a cross-linked isocyanate polyaddition product with low molecular weight polyisocyanate followed by reaction with an amino alkyl silane
http://www.patentstorm.us/patents/3933756.html
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Note added at 49 mins (2009-12-03 13:06:16 GMT)
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Yes, crosslinked = vernetzt, but I'm not quite sure about non-linear isocyanates. This reference may help, depending on the context of your translation: http://en.wikipedia.org/wiki/Toluene_diisocyanate
Note from asker:
| Sorry I didn't provide more context. I only have the patent claims, which relate to an adhesive produced from polyols by reacting the OH groups with diisocyanates. Your references show that isocyanates can be "crosslinked" in English, but isn't this normally "vernetzt"? |
44 mins
bent isocyanates
The most prominent example for a molecule which is "gewinkelt" is water. For the water molecule, I found the description "bent". So it might work for isocyanates as well, although I was not very lucky in finding google hits.
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Note added at 1 Tag14 Min. (2009-12-04 12:31:26 GMT)
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In a completely different field in chemistry I found this source:
http://pubs.acs.org/doi/abs/10.1021/ja980735s
"Bent vs Linear Metallocenes ..."
In German "bent metallocenes" are "gewinkelte Metallocene".
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Note added at 1 Tag14 Min. (2009-12-04 12:31:26 GMT)
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In a completely different field in chemistry I found this source:
http://pubs.acs.org/doi/abs/10.1021/ja980735s
"Bent vs Linear Metallocenes ..."
In German "bent metallocenes" are "gewinkelte Metallocene".
2 days 2 hrs
asymmetrical isocyanates
The term "symmetrical isocyanate(s)" does exist. Thus it is reasonable to use "non-symmetrical", "unsymmetrical" or "asymmetrical" for "gewinkelte Isocyanate". The angle of interest refers to the position of the isocyanate (-NCO) groups (at least 2) within a molecule with respect to each other, and not the the angle within the -NCO itself.
Discussion
Was eigentlich in der "Definition" gemeint sein dürfte, sind zwei NCO-Gruppen in para-Stellung am aromatischen Kern (also gegenüber im 6-Ring, 2 C-Atome dazwischen), im Gegensatz zur meta-Stellung (mit einem C-Atom dazwischen).
s. auch meinen Zusatz zu meiner Antwort.
Here a reference text including "aromatische ... und verzweigte" Isocyanate.
http://en.wikipedia.org/wiki/Isocyanate