IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0474726
(2006-06-26)
|
| 등록번호 |
US8066902
(2011-11-16)
|
|
발명자
/ 주소 |
- Yang, Bo
- Woyciesjes, Peter M.
- Gershun, Aleksei V.
- Marinho, Filipe J.
|
| 출원인 / 주소 |
- Prestone Products Corporation
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
20 |
초록
▼
Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having the structure:wherein R1, R2, R3, and R4 are each independently selected from the group consisting of
Disclosed are coolants comprising brazed metal corrosion inhibitors. In one embodiment, the disclosed brazed metal corrosion inhibitor will comprise a polycarboxylic acid functional compound having the structure:wherein R1, R2, R3, and R4 are each independently selected from the group consisting of H, OH, COOH, C1-C10alkyl groups, glycol esters, anhydride groups, —COOM, and combinations thereof, wherein M is at least one of H, alkali metal ions, alkali earth metal ions, NH4+, amines, imidazoline, polyalcohol esters, C1 to C12 alkyl groups, and combinations thereof; wherein (1) at least three of R1, R2, R3, and R4 contain the group —COOM, wherein M is defined above; or (2) at least two of R1, R2, R3, and R4 contain an anhydride group, and at least one of R1, R2, R3, and R4 contain the group —COOM, wherein M is defined above.
대표청구항
▼
The invention claimed is: 1. A corrosion inhibiting coolant for inhibiting corrosion in brazed aluminum surfaces comprising residual flux agent, said coolant comprising:10% to 99% by weight of a freezing point depressant; andan acid functional corrosion inhibiting component comprising a brazed metal
The invention claimed is: 1. A corrosion inhibiting coolant for inhibiting corrosion in brazed aluminum surfaces comprising residual flux agent, said coolant comprising:10% to 99% by weight of a freezing point depressant; andan acid functional corrosion inhibiting component comprising a brazed metal corrosion inhibitor comprising a polycarboxylic acid functional compound having the structure:
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