Industry Links and References

Plastic Societies:

Society of the Plastics Industry:
Society of Plastics Engineers:
Society of Manufacturing Engineers -- Plastic Molders Div.:

Plastics Related Sites:

Polysort
Plasticsnet
Polymers.com
Polymersites.com
Lots of good links
Injection Molding Resource
A good listing of online reference

Reference Sites: 

Dupont's Literature
Very good literature in PDF formats. Design guides and much more. Site well worth exploring.
GE's Design Guides
Lots of information here as well. Requires registration to view many items.
Dow's Design Guide
PolyOne Technical Service Reports
Honeywell Plastics Technical Literature
Eastman/Texanol Wizards and Data
Check out their Wizards also.
Ticona US literature
In particular check out their "Designing with Plastics: The Fundamentals"
BASF Snap Fit Wizard
BAYER Snap Fit Wizard
Excellent technical site, well worth browsing around
Specific Bayer resources:
Eastman Cantilever Snap Wizard
Brock & Wright of University of Berkeley
GE Wizards Snap Fit, Stiffness, Flow, Fatigue
Jung S Oh of Rensselaer Polytechnic Institute
BASF Downloadable Calculators - snapfit, screws, beams
Free tolerance spreadsheet and lots of other good tolerance information.
Fundamentals of Annular Snap-Fit Joints on Machine Design's site

Plastics Online Databases:

Plastic Technology's Materials Database
Quite Extensive
UL IQ Plastics Database
Searchable database of UL listed materials. Registration required.
MatWeb
Searchable plastics database. Registration required for advanced features.
Ashland Distribution
Product Search
Cole Parmer Chemical Resistance Database
Limited, searchable, database for chemical resistance
Nalgene Chemical Resistance Database
Good searchable database for chemical resistance
IDES Chemical Resistance Resources
Great list of chemical resistance charts
CAMPUS Database
Online database. Material information system. Extensive information on materials listed.
IDES Prospector X5 Database
Online database searchable by Product Name, Manufacturer, Material Family or Uses/Application.

Sites with Discussion Forums:

Plasticsnet Forums
Plastics.Com Forums
PolymerLinks
Plastic Sites Forums

Magazines & Journals: 

Injection Molding Magazine
Plastics Technology Magazine
Modern Plastics Magazine
Plastic News

Information about Nondisclosure Agreements (NDA): 

Patent Cafe
Advantages and Disadvantages -- Samples
Intellectual Property Watchdog
Good discussion, links & Samples
Invention Convention