c****e
发帖数: 252 | 1 请问大家一个问题， 我有polyol的样品， 里面有大约3% 的3A分子筛。请问可以用KF
来测量polyol的水含量吗？ 分子筛吸附的水会不会de-absorb 影响滴定的结果？
谢谢。 |
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c*s
发帖数: 2145 | 2 用一种DIISOCYANATE和两种POLYOL,请问,如果开始阶段先加入全部的DIISOCYANATE和第
一种POLYOL,保持一段时间后加入第二种POLYOL, 会不会形成BLOCK类似的分子结构, 不
是指那种严格的前端聚合物,而是说有一定的集中分布?
谢谢 |
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a*****a
发帖数: 210 | 3 increase Mw of polyol. any polyol with Mw>1000 will be ok for you. check
Huntsman or BASF. they sell polyol with Mw>1000. |
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b********n
发帖数: 38600 | 4 Biodegradable Plastics Made From Soybean Products
The majority of plastic products pose a serious environmental hazard because
they don't degrade in landfills and cannot be composted. Soybeans are a
sustainable source of protein and oil, and soy protein and oil are not
solely a food source for humans and animals. They also have an increasing
role in industrial applications, including the production of soybean
plastics. Soybeans, when produced by sustainable farming, reduce carbon
dioxide emissio... 阅读全帖 |
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k****l
发帖数: 377 | 5 change your polyol to polyester polyol could help. |
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m********3
发帖数: 132 | 6 职位是Commercial Development Analyst，地点在Wilmington, DE，将提供full
relocation package。因公司在亚洲业务发展需要，专门招聘双语人才，故此职位定位
于在美国读书/工作的中国人（“我们这儿”人？），需要有效的OPT许可(may sponsor
H1B if you are a strong candidate)，1-2年后将relocate到上海，会提供
international relocation package。工资和各种福利优厚。
主要的要求是：本科工科背景（化工，材料等为佳），MBA or Master in business
disciplines，3年左右business/financial analysis或者consulting经验(可适当放宽
）。
有兴趣的请发简历至d*****[email protected]，同时网上申请：https://kochcareers.
taleo.net/careersection/26/jobdetail.ftl?lang=en&job=006876
职位和公司详细信息如... 阅读全帖 |
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b***e
发帖数: 1008 | 7 【 以下文字转载自 Immigration 讨论区 】
发信人: barge (路人), 信区: Immigration
标 题: reviewer needed-polymer
发信站: BBS 未名空间站 (Mon Jul 7 23:46:09 2014, 美东)
最近要提交几篇文章，
key words: polymer, polyol, adhesives
有兴趣做reviewer的请把信息发我站内信箱，我提交时推荐成reviewer.
谢谢! |
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b***e
发帖数: 1008 | 8 最近要提交几篇文章，
key words: polymer, polyol, adhesives
有兴趣做reviewer的请把信息发我站内信箱，我提交时推荐成reviewer.
谢谢! |
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b***e
发帖数: 1008 | 9 最近要提交两篇文章，其中一篇打算去green chemistry，另一篇待定。
key words: triglycerides, polyol, free-radical polymerization
有兴趣做reviewer的请把信息发我站内信箱，我提交时推荐成reviewer.
另外，如果文章送审到您手中，还烦多写一点comments，这样editor采纳的可能性大些
:)
谢谢! |
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c********r
发帖数: 154 | 10 got from a recruiter. good luck!
----------------------
1. CHEMICAL PROCESS ENGINEER
*SALARY: BASED ON EXPERIENCE AND CURRENT SALARY
*BONUS
*LOCATION: Wisconsin (No working from remote locations)
*COMPANY WILL PROVIDE RELOCATION EXPENSES
*NO VISA SPONSORSHIP
JOB DESCRIPTION
?B.S. in Chemical/Material Science preferred or similar discipline
?Improve and maintain manufacturing assembly processes
?Address and resolve process, system or equipment issues on manufacturing li
nes
?Lead problem solving ... 阅读全帖 |
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q****e
发帖数: 3660 | 12 need a patent, and please send to l***************[email protected]
Thanks a lot!
IMPROVED ESTERIFICATION OF OXYHYDROCARBON POLYOLS AND ETHERS THEREOF, AND
PRODUCTS THEREFROM, -1992000947/WO-A1/
1992-01-23 1992000947/WO-A1 NDN- 052-0134-0935-5 PCN Univentio
INVENTOR-MILSTEIN, Norman
DATE FILED-1991-07-09
PUBLICATION NUMBER-1992000947/WO-A1
DOCUMENT TYPE-A1
PUBLICATION DATE-1992-01-23 |
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c**********1
发帖数: 3 | 14 HDI-Biurete and a polyester 800g/mole with f=2.4 is made into a clear
coating.
Assuming a need for a 5% Eq Wt excess of the isocyanate. What is the amount
of isocyanate and polyol need to make 1200 g of coating which is 66.66%
solids by weight?
明早考试。。。- - |
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s********n
发帖数: 235 | 15 Title: HOMOGENEOUS AND HETEROGENEOUS NUCLEATIONS IN THE POLYOL PROCESS FOR
THE PREPARATION OF MICRON AND SUB-MICRON SIZE METAL PARTICLES
Author(s): FIEVET, F; LAGIER, JP; BLIN, B; et al.
Source: SOLID STATE IONICS Volume: 32-3 Pages: 198-205 DOI: 10.1016/
0167-2738(89)90222-1 Part: 1 Published: FEB-MAR 1989
http://www.sciencedirect.com/science/article/pii/01672738899022
many thanks!
x********[email protected] |
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j****u
发帖数: 6 | 16 能稍微具体些吗，比如商品化的polyester polyol 谢啦！ |
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c********r
发帖数: 154 | 17 【 以下文字转载自 ChemEng 讨论区 】
发信人: colloidpar (macro), 信区: ChemEng
标 题: job opportunities (no visa support)
发信站: BBS 未名空间站 (Mon May 11 19:39:59 2015, 美东)
got from a recruiter. good luck!
----------------------
1. CHEMICAL PROCESS ENGINEER
*SALARY: BASED ON EXPERIENCE AND CURRENT SALARY
*BONUS
*LOCATION: Wisconsin (No working from remote locations)
*COMPANY WILL PROVIDE RELOCATION EXPENSES
*NO VISA SPONSORSHIP
JOB DESCRIPTION
?B.S. in Chemical/Material Science preferred or similar discipline
?Improve ... 阅读全帖 |
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y*******n
发帖数: 10103 | 18 机油分5个group，group I-III都是石油提炼的， Group IV base stock are
polyalphaolefins (PAOs). Group V is a catch-all group for any base stock not
described by Groups I to IV. Examples of group V base stocks include polyol
esters, polyalkylene glycols (PAG oils), and perfluoropolyalkylethers (
PFPAEs). Groups I and II are commonly referred to as mineral oils, group III
is typically referred to as synthetic (except in Germany and Japan, where
they must not be called synthetic) and group IV is a synthetic oil. G |
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