Application of Lesquerella Oil in Industrial Coatings

Lesquerella oil (LO), a C20 triglyceride homologue of castor oil, is obtained from the seeds of Lesquerella fendleri. LO is being evaluated as a potential castor oil substitute. Novel polyesters containing LO have been synthesized and evaluated. Moreover, the functional LO polyesters have been used in the preparation of polyester-polyurethanes which have subsequently been evaluated for their performance as coatings compositions of high quality

Air-Dry Primer Coatings from Dehydrated Lesquerella Oil

Lesquerella oil (LO), a domestic vegetable oil of hydroxy fatty acid content, was dehydrated (DLO) and the product used to synthesize oil modified polyesters. The polyesters were comparatively evaluated with analogous dehydrated castor oil (DCO) polyesters. Accordingly, polyesters were synthesized from DLO and DCO, and subsequently formulated into air-drying, anti-corrosive primers for evaluation. The DLO and DCO coatings gave comparable pencil hardness, adhesion, and UV resistant properties. However, DLO derived coatings showed reduced drying time, superior flexibility, and corrosion resistance in comparison to a DCO counterpart. (C) 1997 Elsevier Science B.V

Contrast injection bradycardia during coronary angiography: effects in the denervated human heart.

To assess the contribution of cardiac innervation toward understanding the mechanisms of bradycardia during contrast coronary angiography, heart rate (HR) responses in eight patients after heart transplantation were compared with 10 normal patients (control), 10 patients with coronary artery disease (CAD) and normal ventricular function, and 10 patients with congestive cardiomyopathy and normal coronary arteries. The longest P-P interval was measured beat to beat before (HR 1) and after (HR 2) coronary angiography. The coronary vessel perfusing the sinus node did not influence HR 2 responses within each group. HR 1 was significantly different from HR 2 (p less than 0.05) in the control and CAD groups but was not different in the transplant and cardiomyopathy groups. Compared with the control group, the percent decrease in HR was significantly less in transplant patients than in patients with cardiomyopathy. Thus contrast injection bradycardia is absent in denervated patients after heart transplant, and this response is markedly blunted in cardiomyopathy patients who are known to have diminished vasodepressor reflexes. These findings suggest that the bradycardia response is probably a neurally mediated phenomenon

The Witan, 1977-1978 Academic Year V. 5 No. 7, February 1978

On Winning Lawsuits, Help Us Grow, Dean's Desk, Frustration of Financial Aid, Practical Alternatives?, Neutron Bomb, Legal Revolution, Separate Graduation, Age Discrimination Legislation, Faculty Votes to Select Competitors, The Con Con and its Failure,

The Witan, 1977-1978 Academic Year V. 5 No. 7, February 1978

On Winning Lawsuits, Help Us Grow, Dean's Desk, Frustration of Financial Aid, Practical Alternatives?, Neutron Bomb, Legal Revolution, Separate Graduation, Age Discrimination Legislation, Faculty Votes to Select Competitors, The Con Con and its Failure,